chrome/browser/chrome_browser_main.h

   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 #ifndef CHROME_BROWSER_CHROME_BROWSER_MAIN_H_
   6 #define CHROME_BROWSER_CHROME_BROWSER_MAIN_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "base/metrics/field_trial.h"
  11 #include "base/profiler/stack_sampling_profiler.h"
  12 #include "base/tracked_objects.h"
  13 #include "chrome/browser/chrome_browser_field_trials.h"
  14 #include "chrome/browser/chrome_process_singleton.h"
  15 #include "chrome/browser/first_run/first_run.h"
  16 #include "chrome/browser/process_singleton.h"
  17 #include "chrome/browser/ui/startup/startup_browser_creator.h"
  18 #include "content/public/browser/browser_main_parts.h"
  19 #include "content/public/common/main_function_params.h"
  20
  21 class BrowserProcessImpl;
  22 class ChromeBrowserMainExtraParts;
  23 class FieldTrialSynchronizer;
  24 class MetricsService;
  25 class PrefService;
  26 class ProcessPowerCollector;
  27 class Profile;
  28 class StartupBrowserCreator;
  29 class StartupTimeBomb;
  30 class ShutdownWatcherHelper;
  31 class ThreeDAPIObserver;
  32
  33 namespace chrome_browser {
  34 // For use by ShowMissingLocaleMessageBox.
  35 #if defined(OS_WIN)
  36 extern const char kMissingLocaleDataTitle[];
  37 #endif
  38
  39 #if defined(OS_WIN)
  40 extern const char kMissingLocaleDataMessage[];
  41 #endif
  42 }
  43
  44 namespace metrics {
  45 class TrackingSynchronizer;
  46 }
  47
  48 namespace webusb {
  49 class WebUsbBrowserClient;
  50 class WebUsbDetector;
  51 }
  52
  53 class ChromeBrowserMainParts : public content::BrowserMainParts {
  54  public:
  55   ~ChromeBrowserMainParts() override;
  56
  57   // Add additional ChromeBrowserMainExtraParts.
  58   virtual void AddParts(ChromeBrowserMainExtraParts* parts);
  59
  60  protected:
  61   explicit ChromeBrowserMainParts(
  62       const content::MainFunctionParams& parameters);
  63
  64   // content::BrowserMainParts overrides.
  65   // These are called in-order by content::BrowserMainLoop.
  66   // Each stage calls the same stages in any ChromeBrowserMainExtraParts added
  67   // with AddParts() from ChromeContentBrowserClient::CreateBrowserMainParts.
  68   void PreEarlyInitialization() override;
  69   void PostEarlyInitialization() override;
  70   void ToolkitInitialized() override;
  71   void PreMainMessageLoopStart() override;
  72   void PostMainMessageLoopStart() override;
  73   int PreCreateThreads() override;
  74   void PreMainMessageLoopRun() override;
  75   bool MainMessageLoopRun(int* result_code) override;
  76   void PostMainMessageLoopRun() override;
  77   void PostDestroyThreads() override;
  78
  79   // Additional stages for ChromeBrowserMainExtraParts. These stages are called
  80   // in order from PreMainMessageLoopRun(). See implementation for details.
  81   virtual void PreProfileInit();
  82   virtual void PostProfileInit();
  83   virtual void PreBrowserStart();
  84   virtual void PostBrowserStart();
  85
  86   // Displays a warning message that we can't find any locale data files.
  87   virtual void ShowMissingLocaleMessageBox() = 0;
  88
  89   const content::MainFunctionParams& parameters() const {
  90     return parameters_;
  91   }
  92   const base::CommandLine& parsed_command_line() const {
  93     return parsed_command_line_;
  94   }
  95   const base::FilePath& user_data_dir() const {
  96     return user_data_dir_;
  97   }
  98
  99   Profile* profile() { return profile_; }
 100
 101   const PrefService* local_state() const { return local_state_; }
 102
 103  private:
 104   // Methods for |SetupMetricsAndFieldTrials()| --------------------------------
 105
 106   // Constructs metrics service and does related initialization, including
 107   // creation of field trials. Call only after labs have been converted to
 108   // switches.
 109   void SetupMetricsAndFieldTrials();
 110
 111   // Starts recording of metrics. This can only be called after we have a file
 112   // thread.
 113   void StartMetricsRecording();
 114
 115   // Record time from process startup to present time in an UMA histogram.
 116   void RecordBrowserStartupTime();
 117
 118   // Methods for Main Message Loop -------------------------------------------
 119
 120   int PreCreateThreadsImpl();
 121   int PreMainMessageLoopRunImpl();
 122
 123   // Members initialized on construction ---------------------------------------
 124
 125   const content::MainFunctionParams parameters_;
 126   const base::CommandLine& parsed_command_line_;
 127   int result_code_;
 128
 129   // Create StartupTimeBomb object for watching jank during startup.
 130   scoped_ptr<StartupTimeBomb> startup_watcher_;
 131
 132   // Create ShutdownWatcherHelper object for watching jank during shutdown.
 133   // Please keep |shutdown_watcher| as the first object constructed, and hence
 134   // it is destroyed last.
 135   scoped_ptr<ShutdownWatcherHelper> shutdown_watcher_;
 136
 137   // Statistical testing infrastructure for the entire browser. NULL until
 138   // SetupMetricsAndFieldTrials is called.
 139   scoped_ptr<base::FieldTrialList> field_trial_list_;
 140
 141   ChromeBrowserFieldTrials browser_field_trials_;
 142
 143 #if !defined(OS_ANDROID) && !defined(OS_IOS)
 144   // A monitor for attributing power consumption to origins.
 145   scoped_ptr<ProcessPowerCollector> process_power_collector_;
 146
 147   scoped_ptr<webusb::WebUsbBrowserClient> webusb_browser_client_;
 148   scoped_ptr<webusb::WebUsbDetector> webusb_detector_;
 149 #endif
 150
 151   // Vector of additional ChromeBrowserMainExtraParts.
 152   // Parts are deleted in the inverse order they are added.
 153   std::vector<ChromeBrowserMainExtraParts*> chrome_extra_parts_;
 154
 155   // A profiler that periodically samples stack traces. Used to sample startup
 156   // behavior.
 157   base::StackSamplingProfiler sampling_profiler_;
 158
 159   // Members initialized after / released before main_message_loop_ ------------
 160
 161   scoped_ptr<BrowserProcessImpl> browser_process_;
 162   scoped_refptr<metrics::TrackingSynchronizer> tracking_synchronizer_;
 163 #if !defined(OS_ANDROID)
 164   // Browser creation happens on the Java side in Android.
 165   scoped_ptr<StartupBrowserCreator> browser_creator_;
 166
 167   // Android doesn't support multiple browser processes, so it doesn't implement
 168   // ProcessSingleton.
 169   scoped_ptr<ChromeProcessSingleton> process_singleton_;
 170
 171   // Android's first run is done in Java instead of native.
 172   scoped_ptr<first_run::MasterPrefs> master_prefs_;
 173 #endif
 174   Profile* profile_;
 175   bool run_message_loop_;
 176   ProcessSingleton::NotifyResult notify_result_;
 177   scoped_ptr<ThreeDAPIObserver> three_d_observer_;
 178
 179   // Initialized in SetupMetricsAndFieldTrials.
 180   scoped_refptr<FieldTrialSynchronizer> field_trial_synchronizer_;
 181
 182   // Members initialized in PreMainMessageLoopRun, needed in
 183   // PreMainMessageLoopRunThreadsCreated.
 184   PrefService* local_state_;
 185   base::FilePath user_data_dir_;
 186
 187   // Members needed across shutdown methods.
 188   bool restart_last_session_;
 189
 190   DISALLOW_COPY_AND_ASSIGN(ChromeBrowserMainParts);
 191 };
 192
 193 #endif  // CHROME_BROWSER_CHROME_BROWSER_MAIN_H_