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

chrome/browser/extensions/api/history/history_api.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_API_HISTORY_HISTORY_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_HISTORY_HISTORY_API_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 40 matching lines @@
   content::NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(HistoryEventRouter);
 };
 
 class HistoryAPI : public BrowserContextKeyedAPI, public EventRouter::Observer {
  public:
   explicit HistoryAPI(content::BrowserContext* context);
   virtual ~HistoryAPI();
 
-  // BrowserContextKeyedService implementation.
+  // KeyedService implementation.
   virtual void Shutdown() OVERRIDE;
 
   // BrowserContextKeyedAPI implementation.
   static BrowserContextKeyedAPIFactory<HistoryAPI>* GetFactoryInstance();
 
   // EventRouter::Observer implementation.
   virtual void OnListenerAdded(const EventListenerInfo& details) OVERRIDE;
 
  private:
   friend class BrowserContextKeyedAPIFactory<HistoryAPI>;
@@ skipping 132 matching lines @@
   // HistoryFunctionWithCallback:
   virtual bool RunAsyncImpl() OVERRIDE;
 
   // Callback for the history service to acknowledge deletion.
   void DeleteComplete();
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_HISTORY_HISTORY_API_H_