chrome_browser_field_trials_mobile.cc revision 116680a4aac90f2aa7413d9095a592090648e557
1c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// Copyright 2013 The Chromium Authors. All rights reserved. 2c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 3c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// found in the LICENSE file. 4c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 5c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#include "chrome/browser/chrome_browser_field_trials_mobile.h" 6c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 7c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#include <string> 8c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 9c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#include "base/command_line.h" 10c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#include "base/metrics/field_trial.h" 11c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#include "base/prefs/pref_service.h" 12ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch#include "chrome/common/chrome_switches.h" 13c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#include "chrome/common/chrome_version_info.h" 14c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 155d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#if defined(OS_ANDROID) 165d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include "chrome/browser/prerender/prerender_field_trial.h" 175d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#endif 185d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 19c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)namespace chrome { 20c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 21c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)namespace { 22c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 23bb1529ce867d8845a77ec7cdf3e3003ef1771a40Ben Murdoch// Base function used by all data reduction proxy field trials. A trial is 24bb1529ce867d8845a77ec7cdf3e3003ef1771a40Ben Murdoch// only conducted for installs that are in the "Enabled" group. They are always 25bb1529ce867d8845a77ec7cdf3e3003ef1771a40Ben Murdoch// enabled on DEV and BETA channels, and for STABLE, a percentage will be 26bb1529ce867d8845a77ec7cdf3e3003ef1771a40Ben Murdoch// controlled from the server. Until the percentage is learned from the server, 27bb1529ce867d8845a77ec7cdf3e3003ef1771a40Ben Murdoch// a client-side configuration is used. 28bb1529ce867d8845a77ec7cdf3e3003ef1771a40Ben Murdochvoid DataCompressionProxyBaseFieldTrial( 29bb1529ce867d8845a77ec7cdf3e3003ef1771a40Ben Murdoch const char* trial_name, 30bb1529ce867d8845a77ec7cdf3e3003ef1771a40Ben Murdoch const base::FieldTrial::Probability enabled_group_probability, 31bb1529ce867d8845a77ec7cdf3e3003ef1771a40Ben Murdoch const base::FieldTrial::Probability total_probability) { 32c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) const char kEnabled[] = "Enabled"; 33c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) const char kDisabled[] = "Disabled"; 34c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 35c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // Find out if this is a stable channel. 36c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) const bool kIsStableChannel = 37c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) chrome::VersionInfo::GetChannel() == chrome::VersionInfo::CHANNEL_STABLE; 38c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 39c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // Experiment enabled until Jan 1, 2015. By default, disabled. 40c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) scoped_refptr<base::FieldTrial> trial( 41c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) base::FieldTrialList::FactoryGetFieldTrial( 42bb1529ce867d8845a77ec7cdf3e3003ef1771a40Ben Murdoch trial_name, 43bb1529ce867d8845a77ec7cdf3e3003ef1771a40Ben Murdoch total_probability, 44d3868032626d59662ff73b372b5d584c1d144c53Ben Murdoch kDisabled, 2015, 1, 1, base::FieldTrial::ONE_TIME_RANDOMIZED, NULL)); 45c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 46c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // Non-stable channels will run with probability 1. 47c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) const int kEnabledGroup = trial->AppendGroup( 48c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) kEnabled, 49bb1529ce867d8845a77ec7cdf3e3003ef1771a40Ben Murdoch kIsStableChannel ? enabled_group_probability : total_probability); 50c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 51c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) const int v = trial->group(); 52bb1529ce867d8845a77ec7cdf3e3003ef1771a40Ben Murdoch VLOG(1) << trial_name << " enabled group id: " << kEnabledGroup 53c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) << ". Selected group id: " << v; 54c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 55c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 56bb1529ce867d8845a77ec7cdf3e3003ef1771a40Ben Murdochvoid DataCompressionProxyFieldTrials() { 57bb1529ce867d8845a77ec7cdf3e3003ef1771a40Ben Murdoch // Governs the rollout of the compression proxy for Chrome on mobile 585d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // platforms. In all channels, the percentage will be controlled from the 595d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // server, and is configured to be 100% = 1000 / 1000 until overridden by the 605d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // server. 615d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) DataCompressionProxyBaseFieldTrial( 625d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) "DataCompressionProxyRollout", 1000, 1000); 635d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 645d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // Governs the rollout of the _promo_ for the compression proxy 655d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // independently from the rollout of compression proxy. The enabled 665d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // percentage is configured to be 10% = 100 / 1000 until overridden by the 675d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // server. When this trial is "Enabled," users get a promo, whereas 685d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // otherwise, compression is available without a promo. 69bb1529ce867d8845a77ec7cdf3e3003ef1771a40Ben Murdoch DataCompressionProxyBaseFieldTrial( 705d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) "DataCompressionProxyPromoVisibility", 100, 1000); 71bb1529ce867d8845a77ec7cdf3e3003ef1771a40Ben Murdoch} 72bb1529ce867d8845a77ec7cdf3e3003ef1771a40Ben Murdoch 73c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} // namespace 74c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 75116680a4aac90f2aa7413d9095a592090648e557Ben Murdochvoid SetupMobileFieldTrials(const CommandLine& parsed_command_line) { 76bb1529ce867d8845a77ec7cdf3e3003ef1771a40Ben Murdoch DataCompressionProxyFieldTrials(); 775d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#if defined(OS_ANDROID) 785d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) prerender::ConfigurePrerender(parsed_command_line); 795d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#endif 80c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 81c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 82c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} // namespace chrome 83