src/chrome/browser/android/chrome_startup_flags.cc

   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/android/sys_utils.h"
  13 #include "base/command_line.h"
  14 #include "base/logging.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
  20 namespace {
  21
  22 void 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
  28 void 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
  37 void SetChromeSpecificCommandLineFlags() {
  38   // Enable prerender for the omnibox.
  39   SetCommandLineSwitchASCII(switches::kPrerenderMode,
  40                             switches::kPrerenderModeSwitchValueEnabled);
  41   SetCommandLineSwitchASCII(switches::kPrerenderFromOmnibox,
  42                             switches::kPrerenderFromOmniboxSwitchValueEnabled);
  43
  44   // Disable syncing favicons on low end devices.
  45   if (base::android::SysUtils::IsLowEndDevice())
  46     SetCommandLineSwitchASCII(switches::kDisableSyncTypes, "Favicon Images");
  47
  48   // Enable DOM Distiller on local builds, canary and dev-channel.
  49   chrome::VersionInfo::Channel channel = chrome::VersionInfo::GetChannel();
  50   if (channel == chrome::VersionInfo::CHANNEL_UNKNOWN ||
  51       channel == chrome::VersionInfo::CHANNEL_CANARY ||
  52       channel == chrome::VersionInfo::CHANNEL_DEV) {
  53     SetCommandLineSwitch(switches::kEnableDomDistiller);
  54   }
  55 }