Componentize GCM Part 1: create GCM component and move some files over

components/gcm/gcm_app_handler.h

 // Copyright 2014 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_SERVICES_GCM_GCM_APP_HANDLER_H_
-#define CHROME_BROWSER_SERVICES_GCM_GCM_APP_HANDLER_H_
+#ifndef COMPONENTS_GCM_GCM_APP_HANDLER_H_
+#define COMPONENTS_GCM_GCM_APP_HANDLER_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "google_apis/gcm/gcm_client.h"
 
 namespace gcm {
 
 // Defines the interface to provide handling and event routing logic for a given
 // app.
@@ skipping 15 matching lines @@
   virtual void OnMessagesDeleted(const std::string& app_id) = 0;
 
   // Called when a GCM message failed to be delivered.
   virtual void OnSendError(
       const std::string& app_id,
       const GCMClient::SendErrorDetails& send_error_details) = 0;
 };
 
 }  // namespace gcm
 
-#endif  // CHROME_BROWSER_SERVICES_GCM_GCM_APP_HANDLER_H_
+#endif  // COMPONENTS_GCM_GCM_APP_HANDLER_H_