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/tracked_objects.h"
  12 #include "chrome/browser/chrome_browser_field_trials.h"
  13 #include "chrome/browser/chrome_process_singleton.h"
  14 #include "chrome/browser/first_run/first_run.h"
  15 #include "chrome/browser/process_singleton.h"
  16 #include "chrome/browser/task_profiler/auto_tracking.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 chrome_browser_metrics {
  45 class TrackingSynchronizer;
  46 }
  47
  48 namespace performance_monitor {
  49 class StartupTimer;
  50 }
  51
  52 class ChromeBrowserMainParts : public content::BrowserMainParts {
  53  public:
  54   virtual ~ChromeBrowserMainParts();
  55
  56   // Add additional ChromeBrowserMainExtraParts.
  57   virtual void AddParts(ChromeBrowserMainExtraParts* parts);
  58
  59  protected:
  60   explicit ChromeBrowserMainParts(
  61       const content::MainFunctionParams& parameters);
  62
  63   // content::BrowserMainParts overrides.
  64   // These are called in-order by content::BrowserMainLoop.
  65   // Each stage calls the same stages in any ChromeBrowserMainExtraParts added
  66   // with AddParts() from ChromeContentBrowserClient::CreateBrowserMainParts.
  67   virtual void PreEarlyInitialization() OVERRIDE;
  68   virtual void PostEarlyInitialization() OVERRIDE;
  69   virtual void ToolkitInitialized() OVERRIDE;
  70   virtual void PreMainMessageLoopStart() OVERRIDE;
  71   virtual void PostMainMessageLoopStart() OVERRIDE;
  72   virtual int PreCreateThreads() OVERRIDE;
  73   virtual void PreMainMessageLoopRun() OVERRIDE;
  74   virtual bool MainMessageLoopRun(int* result_code) OVERRIDE;
  75   virtual void PostMainMessageLoopRun() OVERRIDE;
  76   virtual void PostDestroyThreads() OVERRIDE;
  77
  78   // Additional stages for ChromeBrowserMainExtraParts. These stages are called
  79   // in order from PreMainMessageLoopRun(). See implementation for details.
  80   virtual void PreProfileInit();
  81   virtual void PostProfileInit();
  82   virtual void PreBrowserStart();
  83   virtual void PostBrowserStart();
  84
  85   // Displays a warning message that we can't find any locale data files.
  86   virtual void ShowMissingLocaleMessageBox() = 0;
  87
  88   const content::MainFunctionParams& parameters() const {
  89     return parameters_;
  90   }
  91   const base::CommandLine& parsed_command_line() const {
  92     return parsed_command_line_;
  93   }
  94
  95   Profile* profile() { return profile_; }
  96
  97   const PrefService* local_state() const { return local_state_; }
  98
  99  private:
 100   // Methods for |SetupMetricsAndFieldTrials()| --------------------------------
 101
 102   // Constructs metrics service and does related initialization, including
 103   // creation of field trials. Call only after labs have been converted to
 104   // switches.
 105   void SetupMetricsAndFieldTrials();
 106
 107   // Starts recording of metrics. This can only be called after we have a file
 108   // thread.
 109   void StartMetricsRecording();
 110
 111   // Record time from process startup to present time in an UMA histogram.
 112   void RecordBrowserStartupTime();
 113
 114   // Records a time value to an UMA histogram in the context of the
 115   // PreReadExperiment field-trial. This also reports to the appropriate
 116   // sub-histogram (_PreRead(Enabled|Disabled)).
 117   void RecordPreReadExperimentTime(const char* name, base::TimeDelta time);
 118
 119   // Methods for Main Message Loop -------------------------------------------
 120
 121   int PreCreateThreadsImpl();
 122   int PreMainMessageLoopRunImpl();
 123
 124   // Members initialized on construction ---------------------------------------
 125
 126   const content::MainFunctionParams parameters_;
 127   const base::CommandLine& parsed_command_line_;
 128   int result_code_;
 129
 130   // Create StartupTimeBomb object for watching jank during startup.
 131   scoped_ptr<StartupTimeBomb> startup_watcher_;
 132
 133   // Create ShutdownWatcherHelper object for watching jank during shutdown.
 134   // Please keep |shutdown_watcher| as the first object constructed, and hence
 135   // it is destroyed last.
 136   scoped_ptr<ShutdownWatcherHelper> shutdown_watcher_;
 137
 138   // A timer to hold data regarding startup and session restore times for
 139   // PerformanceMonitor so that we don't have to start the entire
 140   // PerformanceMonitor at browser startup.
 141   scoped_ptr<performance_monitor::StartupTimer> startup_timer_;
 142
 143   // Creating this object starts tracking the creation and deletion of Task
 144   // instance. This MUST be done before main_message_loop, so that it is
 145   // destroyed after the main_message_loop.
 146   task_profiler::AutoTracking tracking_objects_;
 147
 148   // Statistical testing infrastructure for the entire browser. NULL until
 149   // SetupMetricsAndFieldTrials is called.
 150   scoped_ptr<base::FieldTrialList> field_trial_list_;
 151
 152   ChromeBrowserFieldTrials browser_field_trials_;
 153
 154 #if !defined(OS_ANDROID) && !defined(OS_IOS)
 155   // A monitor for attributing power consumption to origins.
 156   scoped_ptr<ProcessPowerCollector> process_power_collector_;
 157 #endif
 158
 159   // Vector of additional ChromeBrowserMainExtraParts.
 160   // Parts are deleted in the inverse order they are added.
 161   std::vector<ChromeBrowserMainExtraParts*> chrome_extra_parts_;
 162
 163   // Members initialized after / released before main_message_loop_ ------------
 164
 165   scoped_ptr<BrowserProcessImpl> browser_process_;
 166   scoped_refptr<chrome_browser_metrics::TrackingSynchronizer>
 167       tracking_synchronizer_;
 168 #if !defined(OS_ANDROID)
 169   // Browser creation happens on the Java side in Android.
 170   scoped_ptr<StartupBrowserCreator> browser_creator_;
 171
 172   // Android doesn't support multiple browser processes, so it doesn't implement
 173   // ProcessSingleton.
 174   scoped_ptr<ChromeProcessSingleton> process_singleton_;
 175
 176   // Android's first run is done in Java instead of native.
 177   scoped_ptr<first_run::MasterPrefs> master_prefs_;
 178 #endif
 179   Profile* profile_;
 180   bool run_message_loop_;
 181   ProcessSingleton::NotifyResult notify_result_;
 182   scoped_ptr<ThreeDAPIObserver> three_d_observer_;
 183
 184   // Initialized in SetupMetricsAndFieldTrials.
 185   scoped_refptr<FieldTrialSynchronizer> field_trial_synchronizer_;
 186
 187   // Members initialized in PreMainMessageLoopRun, needed in
 188   // PreMainMessageLoopRunThreadsCreated.
 189   PrefService* local_state_;
 190   base::FilePath user_data_dir_;
 191
 192   // Members needed across shutdown methods.
 193   bool restart_last_session_;
 194
 195   // Tests can set this to true to disable restricting cookie access in the
 196   // network stack, as this can only be done once.
 197   static bool disable_enforcing_cookie_policies_for_tests_;
 198
 199   DISALLOW_COPY_AND_ASSIGN(ChromeBrowserMainParts);
 200 };
 201
 202 #endif  // CHROME_BROWSER_CHROME_BROWSER_MAIN_H_