Split ExtensionSystem interface from ExtensionSystemImpl implementation, part 1.

chrome/browser/extensions/api/dial/dial_api.cc

 // 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.
 
 #include "chrome/browser/extensions/api/dial/dial_api.h"
 
 #include <vector>
 
 #include "base/time/time.h"
 #include "chrome/browser/extensions/api/dial/dial_api_factory.h"
-#include "chrome/browser/extensions/extension_system.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/extensions/api/dial.h"
 #include "content/public/browser/browser_thread.h"
 #include "extensions/browser/event_router.h"
+#include "extensions/browser/extension_system.h"
 
 using base::TimeDelta;
 using content::BrowserThread;
 
 namespace {
 
 const char kDialServiceError[] = "Dial service error.";
 
 // How often to poll for devices.
 const int kDialRefreshIntervalSecs = 120;
@@ skipping 142 matching lines @@
   if (!result_)
     error_ = kDialServiceError;
 
   SetResult(new base::FundamentalValue(result_));
   return true;
 }
 
 }  // namespace api
 
 }  // namespace extensions