Move extensions-related files to using //components/keyed_service.

chrome/browser/extensions/activity_log/activity_log.h

Index: chrome/browser/extensions/activity_log/activity_log.h
diff --git a/chrome/browser/extensions/activity_log/activity_log.h b/chrome/browser/extensions/activity_log/activity_log.h
index 8040c2ef1d387bad95aeac14b555bd44b99ed194..a959d2b00337cafe9f3782bdea0920e23f6c616b 100644
--- a/chrome/browser/extensions/activity_log/activity_log.h
+++ b/chrome/browser/extensions/activity_log/activity_log.h
@@ -53,7 +53,7 @@ class ActivityLog : public BrowserContextKeyedAPI,
 
   static BrowserContextKeyedAPIFactory<ActivityLog>* GetFactoryInstance();
 
-  // ActivityLog is a BrowserContextKeyedService, so don't instantiate it with
+  // ActivityLog is a KeyedService, so don't instantiate it with
   // the constructor; use GetInstance instead.
   static ActivityLog* GetInstance(content::BrowserContext* context);
 
@@ -98,7 +98,7 @@ class ActivityLog : public BrowserContextKeyedAPI,
       const std::string& api_name,
       scoped_ptr<base::ListValue> event_args) OVERRIDE;
 
-  // BrowserContextKeyedService
+  // KeyedService
   virtual void Shutdown() OVERRIDE;
 
   static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);