chrome_startup_flags.cc revision 1320f92c476a1ad9d19dba2a48c72b75566198e9 
1// Copyright (c) 2012 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include <jni.h>
6
7#include "chrome/browser/android/chrome_startup_flags.h"
8
9#include "base/android/jni_android.h"
10#include "base/android/jni_string.h"
11#include "base/android/scoped_java_ref.h"
12#include "base/command_line.h"
13#include "base/logging.h"
14#include "base/sys_info.h"
15#include "chrome/common/chrome_switches.h"
16#include "chrome/common/chrome_version_info.h"
17#include "content/public/common/content_switches.h"
18#include "media/base/media_switches.h"
19
20namespace {
21
22void SetCommandLineSwitch(const std::string& switch_string) {
23  CommandLine* command_line = CommandLine::ForCurrentProcess();
24  if (!command_line->HasSwitch(switch_string))
25    command_line->AppendSwitch(switch_string);
26}
27
28void SetCommandLineSwitchASCII(const std::string& switch_string,
29                               const std::string& value) {
30  CommandLine* command_line = CommandLine::ForCurrentProcess();
31  if (!command_line->HasSwitch(switch_string))
32    command_line->AppendSwitchASCII(switch_string, value);
33}
34
35}  // namespace
36
37void SetChromeSpecificCommandLineFlags() {
38  // Enable prerender with holdback.
39  SetCommandLineSwitchASCII(switches::kPrerenderMode,
40                            switches::kPrerenderModeSwitchValueAuto);
41
42  // Enable prerender for the omnibox.
43  SetCommandLineSwitchASCII(switches::kPrerenderFromOmnibox,
44                            switches::kPrerenderFromOmniboxSwitchValueEnabled);
45
46  // Disable syncing favicons on low end devices.
47  if (base::SysInfo::IsLowEndDevice())
48    SetCommandLineSwitchASCII(switches::kDisableSyncTypes, "Favicon Images");
49
50  // Enable DOM Distiller backend.
51  SetCommandLineSwitch(switches::kEnableDomDistiller);
52}
53