variations_service.cc revision 5f1c94371a64b3196d4be9466099bb892df9b88e
15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "chrome/browser/metrics/variations/variations_service.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <set> 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/build_time.h" 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/command_line.h" 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/metrics/histogram.h" 12868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)#include "base/metrics/sparse_histogram.h" 132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "base/prefs/pref_registry_simple.h" 142a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "base/prefs/pref_service.h" 15010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles)#include "base/sys_info.h" 166d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles)#include "base/task_runner_util.h" 17cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)#include "base/timer/elapsed_timer.h" 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/version.h" 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "chrome/browser/browser_process.h" 205f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)#include "chrome/browser/metrics/variations/generated_resources_map.h" 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "chrome/common/chrome_switches.h" 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "chrome/common/pref_names.h" 2346d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)#include "components/metrics/metrics_state_manager.h" 2446d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)#include "components/network_time/network_time_tracker.h" 25cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)#include "components/pref_registry/pref_registry_syncable.h" 2658537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)#include "components/variations/proto/variations_seed.pb.h" 27424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles)#include "components/variations/variations_seed_processor.h" 28cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)#include "components/variations/variations_seed_simulator.h" 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "content/public/browser/browser_thread.h" 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/base/load_flags.h" 31868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)#include "net/base/net_errors.h" 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/base/network_change_notifier.h" 332a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "net/base/url_util.h" 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/http/http_response_headers.h" 352a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "net/http/http_status_code.h" 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/http/http_util.h" 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/url_request/url_fetcher.h" 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/url_request/url_request_status.h" 39f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)#include "ui/base/device_form_factor.h" 405f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)#include "ui/base/resource/resource_bundle.h" 41eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch#include "url/gurl.h" 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 436d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles)#if !defined(OS_ANDROID) && !defined(OS_IOS) && !defined(OS_CHROMEOS) 446d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles)#include "chrome/browser/upgrade_detector_impl.h" 456d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles)#endif 466d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) 47c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#if defined(OS_CHROMEOS) 48c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#include "chrome/browser/chromeos/settings/cros_settings.h" 49c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#endif 50c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace chrome_variations { 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace { 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Default server of Variations seed info. 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const char kDefaultVariationsServerURL[] = 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "https://clients4.google.com/chrome-variations/seed"; 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const int kMaxRetrySeedFetch = 5; 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 602a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// TODO(mad): To be removed when we stop updating the NetworkTimeTracker. 612a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// For the HTTP date headers, the resolution of the server time is 1 second. 622a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const int64 kServerTimeResolutionMs = 1000; 632a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 642a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Wrapper around channel checking, used to enable channel mocking for 652a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// testing. If the current browser channel is not UNKNOWN, this will return 662a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// that channel value. Otherwise, if the fake channel flag is provided, this 672a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// will return the fake channel. Failing that, this will return the UNKNOWN 682a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// channel. 695f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)variations::Study_Channel GetChannelForVariations() { 70ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch switch (chrome::VersionInfo::GetChannel()) { 71ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch case chrome::VersionInfo::CHANNEL_CANARY: 725f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) return variations::Study_Channel_CANARY; 73ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch case chrome::VersionInfo::CHANNEL_DEV: 745f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) return variations::Study_Channel_DEV; 75ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch case chrome::VersionInfo::CHANNEL_BETA: 765f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) return variations::Study_Channel_BETA; 77ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch case chrome::VersionInfo::CHANNEL_STABLE: 785f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) return variations::Study_Channel_STABLE; 79ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch case chrome::VersionInfo::CHANNEL_UNKNOWN: 80ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch break; 81ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch } 82ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch const std::string forced_channel = 832a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) CommandLine::ForCurrentProcess()->GetSwitchValueASCII( 842a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) switches::kFakeVariationsChannel); 852a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (forced_channel == "stable") 865f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) return variations::Study_Channel_STABLE; 87ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch if (forced_channel == "beta") 885f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) return variations::Study_Channel_BETA; 89ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch if (forced_channel == "dev") 905f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) return variations::Study_Channel_DEV; 91ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch if (forced_channel == "canary") 925f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) return variations::Study_Channel_CANARY; 93ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch DVLOG(1) << "Invalid channel provided: " << forced_channel; 945f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) return variations::Study_Channel_UNKNOWN; 952a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 962a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 97c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// Returns a string that will be used for the value of the 'osname' URL param 98c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// to the variations server. 99c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)std::string GetPlatformString() { 100c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#if defined(OS_WIN) 101c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return "win"; 10290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)#elif defined(OS_IOS) 10390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) return "ios"; 104c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#elif defined(OS_MACOSX) 105c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return "mac"; 106c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#elif defined(OS_CHROMEOS) 107c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return "chromeos"; 108c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#elif defined(OS_ANDROID) 109c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return "android"; 110c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#elif defined(OS_LINUX) || defined(OS_BSD) || defined(OS_SOLARIS) 111c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // Default BSD and SOLARIS to Linux to not break those builds, although these 112c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // platforms are not officially supported by Chrome. 113c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return "linux"; 114c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#else 115c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#error Unknown platform 116c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#endif 117c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 118c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 1196d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles)// Gets the version number to use for variations seed simulation. Must be called 1206d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles)// on a thread where IO is allowed. 1216d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles)base::Version GetVersionForSimulation() { 1226d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles)#if !defined(OS_ANDROID) && !defined(OS_IOS) && !defined(OS_CHROMEOS) 1236d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) const base::Version installed_version = 1246d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) UpgradeDetectorImpl::GetCurrentlyInstalledVersion(); 1256d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) if (installed_version.IsValid()) 1266d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) return installed_version; 1276d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles)#endif // !defined(OS_ANDROID) && !defined(OS_IOS) && !defined(OS_CHROMEOS) 1286d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) 1296d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) // TODO(asvitkine): Get the version that will be used on restart instead of 1306d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) // the current version on Android, iOS and ChromeOS. 1316d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) return base::Version(chrome::VersionInfo().Version()); 1326d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles)} 1336d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) 1345d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// Gets the restrict parameter from |policy_pref_service| or from Chrome OS 1355d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// settings in the case of that platform. 1365d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)std::string GetRestrictParameterPref(PrefService* policy_pref_service) { 137c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) std::string parameter; 138c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#if defined(OS_CHROMEOS) 139c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) chromeos::CrosSettings::Get()->GetString( 140c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) chromeos::kVariationsRestrictParameter, ¶meter); 141c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#else 1425d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (policy_pref_service) { 1435d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) parameter = 1445d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) policy_pref_service->GetString(prefs::kVariationsRestrictParameter); 1455d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) } 146c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#endif 147c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return parameter; 148c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 149c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 150868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)enum ResourceRequestsAllowedState { 151868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) RESOURCE_REQUESTS_ALLOWED, 152868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) RESOURCE_REQUESTS_NOT_ALLOWED, 153868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) RESOURCE_REQUESTS_ALLOWED_NOTIFIED, 154f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) RESOURCE_REQUESTS_NOT_ALLOWED_EULA_NOT_ACCEPTED, 155f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) RESOURCE_REQUESTS_NOT_ALLOWED_NETWORK_DOWN, 156f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) RESOURCE_REQUESTS_NOT_ALLOWED_COMMAND_LINE_DISABLED, 157868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) RESOURCE_REQUESTS_ALLOWED_ENUM_SIZE, 158868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)}; 159868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 160868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)// Records UMA histogram with the current resource requests allowed state. 161868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)void RecordRequestsAllowedHistogram(ResourceRequestsAllowedState state) { 162868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) UMA_HISTOGRAM_ENUMERATION("Variations.ResourceRequestsAllowed", state, 163868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) RESOURCE_REQUESTS_ALLOWED_ENUM_SIZE); 164868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)} 165868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 166f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)// Converts ResourceRequestAllowedNotifier::State to the corresponding 167f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)// ResourceRequestsAllowedState value. 168f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)ResourceRequestsAllowedState ResourceRequestStateToHistogramValue( 169f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) ResourceRequestAllowedNotifier::State state) { 170f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) switch (state) { 171f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) case ResourceRequestAllowedNotifier::DISALLOWED_EULA_NOT_ACCEPTED: 172f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) return RESOURCE_REQUESTS_NOT_ALLOWED_EULA_NOT_ACCEPTED; 173f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) case ResourceRequestAllowedNotifier::DISALLOWED_NETWORK_DOWN: 174f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) return RESOURCE_REQUESTS_NOT_ALLOWED_NETWORK_DOWN; 175f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) case ResourceRequestAllowedNotifier::DISALLOWED_COMMAND_LINE_DISABLED: 176f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) return RESOURCE_REQUESTS_NOT_ALLOWED_COMMAND_LINE_DISABLED; 177f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) case ResourceRequestAllowedNotifier::ALLOWED: 1785d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) return RESOURCE_REQUESTS_ALLOWED; 179f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) } 180f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NOTREACHED(); 181f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) return RESOURCE_REQUESTS_NOT_ALLOWED; 182f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)} 183f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) 1847dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 185010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles)// Gets current form factor and converts it from enum DeviceFormFactor to enum 186f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)// Study_FormFactor. 1875f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)variations::Study_FormFactor GetCurrentFormFactor() { 188f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) switch (ui::GetDeviceFormFactor()) { 189f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) case ui::DEVICE_FORM_FACTOR_PHONE: 1905f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) return variations::Study_FormFactor_PHONE; 191f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) case ui::DEVICE_FORM_FACTOR_TABLET: 1925f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) return variations::Study_FormFactor_TABLET; 193f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) case ui::DEVICE_FORM_FACTOR_DESKTOP: 1945f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) return variations::Study_FormFactor_DESKTOP; 195f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) } 196f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NOTREACHED(); 1975f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) return variations::Study_FormFactor_DESKTOP; 198f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)} 199f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) 200010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles)// Gets the hardware class and returns it as a string. This returns an empty 201010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles)// string if the client is not ChromeOS. 202010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles)std::string GetHardwareClass() { 203010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles)#if defined(OS_CHROMEOS) 204010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) return base::SysInfo::GetLsbReleaseBoard(); 205010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles)#endif // OS_CHROMEOS 206010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) return std::string(); 207010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles)} 208010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) 209a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch// Returns the date that should be used by the VariationsSeedProcessor to do 210a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch// expiry and start date checks. 211a02191e04bc25c4935f804f2c080ae28663d096dBen Murdochbase::Time GetReferenceDateForExpiryChecks(PrefService* local_state) { 212a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch const int64 date_value = local_state->GetInt64(prefs::kVariationsSeedDate); 213a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch const base::Time seed_date = base::Time::FromInternalValue(date_value); 214a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch const base::Time build_time = base::GetBuildTime(); 215a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch // Use the build time for date checks if either the seed date is invalid or 216a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch // the build time is newer than the seed date. 217a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch base::Time reference_date = seed_date; 218a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch if (seed_date.is_null() || seed_date < build_time) 219a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch reference_date = build_time; 220a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch return reference_date; 221a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch} 222a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch 2235f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// Overrides the string resource sepecified by |hash| with |string| in the 2245f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// resource bundle. Used as a callback passed to the variations seed processor. 2255f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)void OverrideUIString(uint32_t hash, const base::string16& string) { 2265f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) int resource_id = GetResourceIndex(hash); 2275f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) if (resource_id == -1) 2285f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) return; 2295f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 2305f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) ui::ResourceBundle::GetSharedInstance().OverrideLocaleStringResource( 2315f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) resource_id, string); 2325f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)} 2335f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 2345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace 2355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 236cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)VariationsService::VariationsService( 237cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) ResourceRequestAllowedNotifier* notifier, 238cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) PrefService* local_state, 239cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) metrics::MetricsStateManager* state_manager) 240c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) : local_state_(local_state), 241cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) state_manager_(state_manager), 2425d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) policy_pref_service_(local_state), 2435d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) seed_store_(local_state), 2445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) create_trials_from_seed_called_(false), 2457d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) initial_request_completed_(false), 2466d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) resource_request_allowed_notifier_(notifier), 2476d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) weak_ptr_factory_(this) { 2485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) resource_request_allowed_notifier_->Init(this); 2495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)VariationsService::~VariationsService() { 2525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)bool VariationsService::CreateTrialsFromSeed() { 2555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) create_trials_from_seed_called_ = true; 2565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2575f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) variations::VariationsSeed seed; 2585d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (!seed_store_.LoadSeed(&seed)) 2595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 2605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const chrome::VersionInfo current_version_info; 2625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!current_version_info.is_valid()) 2635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 2645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 265ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch const base::Version current_version(current_version_info.Version()); 266ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch if (!current_version.IsValid()) 267ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch return false; 268ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch 2695f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) variations::VariationsSeedProcessor().CreateTrialsFromSeed( 2705f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) seed, 2715f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) g_browser_process->GetApplicationLocale(), 2725f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) GetReferenceDateForExpiryChecks(local_state_), 2735f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) current_version, 2745f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) GetChannelForVariations(), 2755f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) GetCurrentFormFactor(), 2765f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) GetHardwareClass(), 2775f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) base::Bind(&OverrideUIString)); 2782a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2792a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Log the "freshness" of the seed that was just used. The freshness is the 2802a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // time between the last successful seed download and now. 2812a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const int64 last_fetch_time_internal = 2822a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) local_state_->GetInt64(prefs::kVariationsLastFetchTime); 2832a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (last_fetch_time_internal) { 2842a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const base::Time now = base::Time::Now(); 2852a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const base::TimeDelta delta = 2862a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) now - base::Time::FromInternalValue(last_fetch_time_internal); 2872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Log the value in number of minutes. 2882a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) UMA_HISTOGRAM_CUSTOM_COUNTS("Variations.SeedFreshness", delta.InMinutes(), 2892a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1, base::TimeDelta::FromDays(30).InMinutes(), 50); 2905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 2935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void VariationsService::StartRepeatedVariationsSeedFetch() { 2965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI)); 2975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2985d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // Initialize the Variations server URL. 2995d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) variations_server_url_ = GetVariationsServerURL(policy_pref_service_); 3005d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 3015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Check that |CreateTrialsFromSeed| was called, which is necessary to 3025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // retrieve the serial number that will be sent to the server. 3035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(create_trials_from_seed_called_); 3045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 305c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) DCHECK(!request_scheduler_.get()); 306c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // Note that the act of instantiating the scheduler will start the fetch, if 307c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // the scheduler deems appropriate. Using Unretained is fine here since the 308c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // lifespan of request_scheduler_ is guaranteed to be shorter than that of 309c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // this service. 310c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) request_scheduler_.reset(VariationsRequestScheduler::Create( 311c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) base::Bind(&VariationsService::FetchVariationsSeed, 312c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) base::Unretained(this)), local_state_)); 313c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) request_scheduler_->Start(); 3142a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 3152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 316116680a4aac90f2aa7413d9095a592090648e557Ben Murdochvoid VariationsService::AddObserver(Observer* observer) { 317116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch observer_list_.AddObserver(observer); 318116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch} 319116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch 320116680a4aac90f2aa7413d9095a592090648e557Ben Murdochvoid VariationsService::RemoveObserver(Observer* observer) { 321116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch observer_list_.RemoveObserver(observer); 322116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch} 323116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch 3245d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// TODO(rkaplow): Handle this and the similar event in metrics_service by 3255d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// observing an 'OnAppEnterForeground' event in RequestScheduler instead of 3265d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// requiring the frontend code to notify each service individually. Since the 3275d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// scheduler will handle it directly the VariationService shouldn't need to 3285d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// know details of this anymore. 3295d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)void VariationsService::OnAppEnterForeground() { 3305d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) request_scheduler_->OnAppEnterForeground(); 3315d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)} 3325d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 333116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch#if defined(OS_WIN) 334116680a4aac90f2aa7413d9095a592090648e557Ben Murdochvoid VariationsService::StartGoogleUpdateRegistrySync() { 335116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch registry_syncer_.RequestRegistrySync(); 336116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch} 337116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch#endif 338116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch 339116680a4aac90f2aa7413d9095a592090648e557Ben Murdochvoid VariationsService::SetCreateTrialsFromSeedCalledForTesting(bool called) { 340116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch create_trials_from_seed_called_ = called; 341116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch} 342116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch 3435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 3445d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)GURL VariationsService::GetVariationsServerURL( 3455d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) PrefService* policy_pref_service) { 3462a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::string server_url_string(CommandLine::ForCurrentProcess()-> 3472a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) GetSwitchValueASCII(switches::kVariationsServerURL)); 3482a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (server_url_string.empty()) 3492a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) server_url_string = kDefaultVariationsServerURL; 3502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) GURL server_url = GURL(server_url_string); 351c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 3525d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) const std::string restrict_param = 3535d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) GetRestrictParameterPref(policy_pref_service); 354c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) if (!restrict_param.empty()) { 355c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) server_url = net::AppendOrReplaceQueryParameter(server_url, 356c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) "restrict", 357c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) restrict_param); 3582a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 359c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 360c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) server_url = net::AppendOrReplaceQueryParameter(server_url, "osname", 361c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) GetPlatformString()); 362c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 3632a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(server_url.is_valid()); 3642a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return server_url; 3652a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 3662a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3672a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// static 3682a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)std::string VariationsService::GetDefaultVariationsServerURLForTesting() { 3692a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return kDefaultVariationsServerURL; 3702a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 3712a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3722a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// static 3732a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void VariationsService::RegisterPrefs(PrefRegistrySimple* registry) { 3745d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) VariationsSeedStore::RegisterPrefs(registry); 3752a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) registry->RegisterInt64Pref(prefs::kVariationsLastFetchTime, 0); 3765d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // This preference will only be written by the policy service, which will fill 3775d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // it according to a value stored in the User Policy. 3782a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) registry->RegisterStringPref(prefs::kVariationsRestrictParameter, 3792a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::string()); 3802a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 3812a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3822a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// static 3835d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)void VariationsService::RegisterProfilePrefs( 3845d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) user_prefs::PrefRegistrySyncable* registry) { 3855d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // This preference will only be written by the policy service, which will fill 3865d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // it according to a value stored in the User Policy. 3875d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) registry->RegisterStringPref( 3885d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) prefs::kVariationsRestrictParameter, 3895d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) std::string(), 3905d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF); 3915d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)} 3925d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 3935d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// static 394cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)scoped_ptr<VariationsService> VariationsService::Create( 395cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) PrefService* local_state, 396cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) metrics::MetricsStateManager* state_manager) { 397cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) scoped_ptr<VariationsService> result; 398c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#if !defined(GOOGLE_CHROME_BUILD) 3992a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Unless the URL was provided, unsupported builds should return NULL to 4002a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // indicate that the service should not be used. 4012a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (!CommandLine::ForCurrentProcess()->HasSwitch( 402b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) switches::kVariationsServerURL)) { 403b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) DVLOG(1) << "Not creating VariationsService in unofficial build without --" 404b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) << switches::kVariationsServerURL << " specified."; 405cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) return result.Pass(); 406b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) } 4072a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#endif 408116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch result.reset(new VariationsService( 409116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch new ResourceRequestAllowedNotifier, local_state, state_manager)); 410cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) return result.Pass(); 4112a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 4122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void VariationsService::DoActualFetch() { 4145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pending_seed_request_.reset(net::URLFetcher::Create( 4152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 0, variations_server_url_, net::URLFetcher::GET, this)); 4165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pending_seed_request_->SetLoadFlags(net::LOAD_DO_NOT_SEND_COOKIES | 4175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) net::LOAD_DO_NOT_SAVE_COOKIES); 4185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pending_seed_request_->SetRequestContext( 4195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) g_browser_process->system_request_context()); 4202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) pending_seed_request_->SetMaxRetriesOn5xx(kMaxRetrySeedFetch); 4215d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (!seed_store_.variations_serial_number().empty()) { 4225d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) pending_seed_request_->AddExtraRequestHeader( 4235d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) "If-Match:" + seed_store_.variations_serial_number()); 4245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pending_seed_request_->Start(); 4265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 427868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) const base::TimeTicks now = base::TimeTicks::Now(); 428868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) base::TimeDelta time_since_last_fetch; 429868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) // Record a time delta of 0 (default value) if there was no previous fetch. 430868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) if (!last_request_started_time_.is_null()) 431868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) time_since_last_fetch = now - last_request_started_time_; 432868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) UMA_HISTOGRAM_CUSTOM_COUNTS("Variations.TimeSinceLastFetchAttempt", 433868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) time_since_last_fetch.InMinutes(), 0, 434868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) base::TimeDelta::FromDays(7).InMinutes(), 50); 435868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) last_request_started_time_ = now; 4365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 4375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 438a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)void VariationsService::StoreSeed(const std::string& seed_data, 439a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) const std::string& seed_signature, 440a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) const base::Time& date_fetched) { 4415f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) scoped_ptr<variations::VariationsSeed> seed(new variations::VariationsSeed); 442cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) if (!seed_store_.StoreSeedData(seed_data, seed_signature, date_fetched, 4436d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) seed.get())) { 444a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch return; 445cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) } 446a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch RecordLastFetchTime(); 447cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 448cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) // Perform seed simulation only if |state_manager_| is not-NULL. The state 449cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) // manager may be NULL for some unit tests. 450cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) if (!state_manager_) 451cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) return; 452cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 4536d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) base::PostTaskAndReplyWithResult( 4546d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) content::BrowserThread::GetBlockingPool(), 4556d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) FROM_HERE, 4566d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) base::Bind(&GetVersionForSimulation), 4576d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) base::Bind(&VariationsService::PerformSimulationWithVersion, 4586d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) weak_ptr_factory_.GetWeakPtr(), base::Passed(&seed))); 459a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)} 460a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 4615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void VariationsService::FetchVariationsSeed() { 4625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI)); 4635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 464f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) const ResourceRequestAllowedNotifier::State state = 465f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) resource_request_allowed_notifier_->GetResourceRequestsAllowedState(); 4665d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) RecordRequestsAllowedHistogram(ResourceRequestStateToHistogramValue(state)); 467f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) if (state != ResourceRequestAllowedNotifier::ALLOWED) { 4685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DVLOG(1) << "Resource requests were not allowed. Waiting for notification."; 4695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 4705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DoActualFetch(); 4735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 4745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 475116680a4aac90f2aa7413d9095a592090648e557Ben Murdochvoid VariationsService::NotifyObservers( 4765f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) const variations::VariationsSeedSimulator::Result& result) { 477116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch if (result.kill_critical_group_change_count > 0) { 478116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch FOR_EACH_OBSERVER(Observer, observer_list_, 479116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch OnExperimentChangesDetected(Observer::CRITICAL)); 480116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch } else if (result.kill_best_effort_group_change_count > 0) { 481116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch FOR_EACH_OBSERVER(Observer, observer_list_, 482116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch OnExperimentChangesDetected(Observer::BEST_EFFORT)); 483116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch } 484116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch} 485116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch 4865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void VariationsService::OnURLFetchComplete(const net::URLFetcher* source) { 4875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK_EQ(pending_seed_request_.get(), source); 4887d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) 4897d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) const bool is_first_request = !initial_request_completed_; 4907d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) initial_request_completed_ = true; 4917d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) 4925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The fetcher will be deleted when the request is handled. 4932a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) scoped_ptr<const net::URLFetcher> request(pending_seed_request_.release()); 494868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) const net::URLRequestStatus& request_status = request->GetStatus(); 495868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) if (request_status.status() != net::URLRequestStatus::SUCCESS) { 496868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) UMA_HISTOGRAM_SPARSE_SLOWLY("Variations.FailedRequestErrorCode", 497868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) -request_status.error()); 498868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) DVLOG(1) << "Variations server request failed with error: " 499868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) << request_status.error() << ": " 500868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) << net::ErrorToString(request_status.error()); 5017d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) // It's common for the very first fetch attempt to fail (e.g. the network 5027d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) // may not yet be available). In such a case, try again soon, rather than 5037d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) // waiting the full time interval. 5047d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) if (is_first_request) 5057d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) request_scheduler_->ScheduleFetchShortly(); 5065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 5075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 5085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Log the response code. 5102a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const int response_code = request->GetResponseCode(); 511868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) UMA_HISTOGRAM_SPARSE_SLOWLY("Variations.SeedFetchResponseCode", 512868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) response_code); 5135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const base::TimeDelta latency = 5155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::TimeTicks::Now() - last_request_started_time_; 5165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::Time response_date; 5182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (response_code == net::HTTP_OK || 5192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) response_code == net::HTTP_NOT_MODIFIED) { 5202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool success = request->GetResponseHeaders()->GetDateValue(&response_date); 5212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(success || response_date.is_null()); 5222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 5232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (!response_date.is_null()) { 524cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) g_browser_process->network_time_tracker()->UpdateNetworkTime( 5252a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) response_date, 5262a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::TimeDelta::FromMilliseconds(kServerTimeResolutionMs), 527cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) latency, 528cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) base::TimeTicks::Now()); 5292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 5302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 5312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 5322a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (response_code != net::HTTP_OK) { 5332a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DVLOG(1) << "Variations server request returned non-HTTP_OK response code: " 5342a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) << response_code; 5352a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (response_code == net::HTTP_NOT_MODIFIED) { 5362a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) RecordLastFetchTime(); 537f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) // Update the seed date value in local state (used for expiry check on 538f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) // next start up), since 304 is a successful response. 539a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) seed_store_.UpdateSeedDateAndLogDayChange(response_date); 5402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 5415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 5425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 5435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string seed_data; 5455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool success = request->GetResponseAsString(&seed_data); 5465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(success); 5475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5485d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) std::string seed_signature; 5495d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) request->GetResponseHeaders()->EnumerateHeader(NULL, 5505d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) "X-Seed-Signature", 5515d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) &seed_signature); 552a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) StoreSeed(seed_data, seed_signature, response_date); 5535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 5545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void VariationsService::OnResourceRequestsAllowed() { 5565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Note that this only attempts to fetch the seed at most once per period 5575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // (kSeedFetchPeriodHours). This works because 5585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // |resource_request_allowed_notifier_| only calls this method if an 5595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // attempt was made earlier that fails (which implies that the period had 5605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // elapsed). After a successful attempt is made, the notifier will know not 5615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // to call this method again until another failed attempt occurs. 562868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) RecordRequestsAllowedHistogram(RESOURCE_REQUESTS_ALLOWED_NOTIFIED); 5635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DVLOG(1) << "Retrying fetch."; 5645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DoActualFetch(); 565c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 566c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // This service must have created a scheduler in order for this to be called. 567c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) DCHECK(request_scheduler_.get()); 568c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) request_scheduler_->Reset(); 5695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 5705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5716d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles)void VariationsService::PerformSimulationWithVersion( 5725f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) scoped_ptr<variations::VariationsSeed> seed, 5736d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) const base::Version& version) { 5745f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) if (!version.IsValid()) 5756d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) return; 5766d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) 5776d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) const base::ElapsedTimer timer; 5786d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) 5796d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) scoped_ptr<const base::FieldTrial::EntropyProvider> entropy_provider = 5806d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) state_manager_->CreateEntropyProvider(); 5815f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) variations::VariationsSeedSimulator seed_simulator(*entropy_provider); 5825f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 5835f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) const variations::VariationsSeedSimulator::Result result = 5845f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) seed_simulator.SimulateSeedStudies( 5855f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) *seed, g_browser_process->GetApplicationLocale(), 5865f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) GetReferenceDateForExpiryChecks(local_state_), version, 5875f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) GetChannelForVariations(), GetCurrentFormFactor(), 5885f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) GetHardwareClass()); 5896d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) 5906d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) UMA_HISTOGRAM_COUNTS_100("Variations.SimulateSeed.NormalChanges", 5916d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) result.normal_group_change_count); 5926d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) UMA_HISTOGRAM_COUNTS_100("Variations.SimulateSeed.KillBestEffortChanges", 5936d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) result.kill_best_effort_group_change_count); 5946d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) UMA_HISTOGRAM_COUNTS_100("Variations.SimulateSeed.KillCriticalChanges", 5956d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) result.kill_critical_group_change_count); 5966d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) 5976d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) UMA_HISTOGRAM_TIMES("Variations.SimulateSeed.Duration", timer.Elapsed()); 598116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch 599116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch NotifyObservers(result); 6006d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles)} 6016d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) 6022a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void VariationsService::RecordLastFetchTime() { 6032a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // local_state_ is NULL in tests, so check it first. 6042a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (local_state_) { 6052a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) local_state_->SetInt64(prefs::kVariationsLastFetchTime, 6062a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::Time::Now().ToInternalValue()); 6072a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 6082a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 6092a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 6105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace chrome_variations 611