Sets correct ActivityLog enabled status to the first renderer process

chrome/browser/extensions/activity_log/activity_log.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_ACTIVITY_LOG_ACTIVITY_LOG_H_
 #define CHROME_BROWSER_EXTENSIONS_ACTIVITY_LOG_ACTIVITY_LOG_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 11 matching lines @@
 #include "chrome/browser/extensions/tab_helper.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/extensions/dom_action_types.h"
 #include "components/browser_context_keyed_service/browser_context_dependency_manager.h"
 #include "components/browser_context_keyed_service/browser_context_keyed_service.h"
 #include "components/browser_context_keyed_service/browser_context_keyed_service_factory.h"
 
 class Profile;
 using content::BrowserThread;
 
+namespace user_prefs {
+class PrefRegistrySyncable;
+}
+
 namespace extensions {
 class Extension;
 class ActivityLogPolicy;
 
 // A utility for tracing interesting activity for each extension.
 // It writes to an ActivityDatabase on a separate thread to record the activity.
 class ActivityLog : public BrowserContextKeyedService,
                     public TabHelper::ScriptExecutionObserver,
                     public InstallObserver {
  public:
   // Observers can listen for activity events. There is probably only one
   // observer: the activityLogPrivate API.
   class Observer {
    public:
     virtual void OnExtensionActivity(scoped_refptr<Action> activity) = 0;
   };
 
   // ActivityLog is a singleton, so don't instantiate it with the constructor;
   // use GetInstance instead.
   static ActivityLog* GetInstance(Profile* profile);
 
+  // Specifies if AL was enabled at least for one profile. We use this method to
+  // check if AL possibly enabled when a profile is not available, e.g., when
+  // executing on thread other than UI.
+  static bool IsLogEnabledOnAnyProfile();
+
   // Provides up-to-date information about whether the AL is enabled for a
   // profile. The AL is enabled if the user has installed the whitelisted
   // AL extension *or* set the --enable-extension-activity-logging flag.
   bool IsLogEnabled();
 
-  // If you want to know whether the log is enabled but DON'T have a profile
-  // object yet, use this method. However, it's preferable for the caller to
-  // use IsLogEnabled when possible.
-  static bool IsLogEnabledOnAnyProfile();
-
   // Add/remove observer: the activityLogPrivate API only listens when the
   // ActivityLog extension is registered for an event.
   void AddObserver(Observer* observer);
   void RemoveObserver(Observer* observer);
 
   // Logs an extension action: passes it to any installed policy to be logged
   // to the database, to any observers, and logs to the console if in testing
   // mode.
   void LogAction(scoped_refptr<Action> action);
 
   // Retrieves the list of actions for a given extension on a specific day.
   // Today is 0, yesterday is 1, etc. Returns one day at a time.
   // Response is sent to the method/function in the callback.
   // Use base::Bind to create the callback.
   void GetActions(const std::string& extension_id,
                   const int day,
                   const base::Callback
                       <void(scoped_ptr<std::vector<scoped_refptr<Action> > >)>&
                       callback);
 
   // Extension::InstallObserver
   // We keep track of whether the whitelisted extension is installed; if it is,
   // we want to recompute whether to have logging enabled.
-  virtual void OnExtensionInstalled(
-      const extensions::Extension* extension) OVERRIDE {}
-  virtual void OnExtensionLoaded(
-      const extensions::Extension* extension) OVERRIDE;
-  virtual void OnExtensionUnloaded(
-      const extensions::Extension* extension) OVERRIDE;
-  virtual void OnExtensionUninstalled(
-      const extensions::Extension* extension) OVERRIDE {}
+  virtual void OnExtensionInstalled(const Extension* extension) OVERRIDE {}
+  virtual void OnExtensionLoaded(const Extension* extension) OVERRIDE;
+  virtual void OnExtensionUnloaded(const Extension* extension) OVERRIDE;
+  virtual void OnExtensionUninstalled(const Extension* extension) OVERRIDE {}
   // We also have to list the following from InstallObserver.
   virtual void OnBeginExtensionInstall(const std::string& extension_id,
                                        const std::string& extension_name,
                                        const gfx::ImageSkia& installing_icon,
                                        bool is_app,
                                        bool is_platform_app) OVERRIDE {}
   virtual void OnDownloadProgress(const std::string& extension_id,
                                   int percent_downloaded) OVERRIDE {}
   virtual void OnInstallFailure(const std::string& extension_id) OVERRIDE {}
   virtual void OnAppsReordered() OVERRIDE {}
   virtual void OnAppInstalledToAppList(
       const std::string& extension_id) OVERRIDE {}
   virtual void OnShutdown() OVERRIDE {}
 
   // BrowserContextKeyedService
   virtual void Shutdown() OVERRIDE;
 
+  static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
+
  private:
   friend class ActivityLogFactory;
   friend class ActivityLogTest;
   friend class RenderViewActivityLogTest;
 
   explicit ActivityLog(Profile* profile);
   virtual ~ActivityLog();
 
-  // Some setup needs to wait until after the ExtensionSystem/ExtensionService
-  // are done with their own setup.
-  void Init();
+  // Delayed initialization of Install Tracker which waits until after the
+  // ExtensionSystem/ExtensionService are done with their own setup.
+  void InitInstallTracker();
 
   // TabHelper::ScriptExecutionObserver implementation.
   // Fires when a ContentScript is executed.
   virtual void OnScriptsExecuted(
       const content::WebContents* web_contents,
       const ExecutingScriptsMap& extension_ids,
       int32 page_id,
       const GURL& on_url) OVERRIDE;
 
-  // For unit tests only. Does not call Init again!
-  // Sets whether logging should be enabled for the whole current profile.
-  static void RecomputeLoggingIsEnabled(bool profile_enabled);
-
   // At the moment, ActivityLog will use only one policy for summarization.
   // These methods are used to choose and set the most appropriate policy.
   void ChooseDefaultPolicy();
   void SetDefaultPolicy(ActivityLogPolicy::PolicyType policy_type);
 
   typedef ObserverListThreadSafe<Observer> ObserverList;
   scoped_refptr<ObserverList> observers_;
 
   // The policy object takes care of data summarization, compression, and
   // logging.  The policy object is owned by the ActivityLog, but this cannot
   // be a scoped_ptr since some cleanup work must happen on the database
   // thread.  Calling policy_->Close() will free the object; see the comments
   // on the ActivityDatabase class for full details.
-  extensions::ActivityLogPolicy* policy_;
+  ActivityLogPolicy* policy_;
 
   // TODO(dbabic,felt) change this into a list of policy types later.
   ActivityLogPolicy::PolicyType policy_type_;
 
   Profile* profile_;
   bool enabled_;  // Whether logging is currently enabled.
-  bool initialized_;  // Whether Init() has already been called.
   bool policy_chosen_;  // Whether we've already set the default policy.
   // testing_mode_ controls whether to log API call arguments. By default, we
   // don't log most arguments to avoid saving too much data. In testing mode,
   // argument collection is enabled. We also whitelist some arguments for
   // collection regardless of whether this bool is true.
   // When testing_mode_ is enabled, we also print to the console.
   bool testing_mode_;
   // We need the DB, FILE, and IO threads to operate. In some cases (tests),
   // these threads might not exist, so we avoid dispatching anything to the
   // ActivityDatabase to prevent things from exploding.
   bool has_threads_;
 
   // Used to track whether the whitelisted extension is installed. If it's
   // added or removed, enabled_ may change.
   InstallTracker* tracker_;
 
+  // Set if the watchdog extension is present and active. Maintained by
+  // kWatchdogExtensionActive pref variable.
+  bool watchdog_extension_active_;
+
+  // Specifies if AL was enabled at least for one profile.
+  static bool enabled_on_any_profile_;
+
   DISALLOW_COPY_AND_ASSIGN(ActivityLog);
 };
 
 // Each profile has different extensions, so we keep a different database for
 // each profile.
 class ActivityLogFactory : public BrowserContextKeyedServiceFactory {
  public:
   static ActivityLog* GetForProfile(Profile* profile) {
     return static_cast<ActivityLog*>(
         GetInstance()->GetServiceForBrowserContext(profile, true));
@@ skipping 12 matching lines @@
   virtual content::BrowserContext* GetBrowserContextToUse(
       content::BrowserContext* context) const OVERRIDE;
 
   DISALLOW_COPY_AND_ASSIGN(ActivityLogFactory);
 };
 
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_ACTIVITY_LOG_ACTIVITY_LOG_H_