Switch to standard integer types in components/, part 1 of 4.

components/copresence/handlers/gcm_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 COMPONENTS_COPRESENCE_HANDLERS_GCM_HANDLER_H_
 #define COMPONENTS_COPRESENCE_HANDLERS_GCM_HANDLER_H_
 
 #include <string>
 
 #include "base/callback_forward.h"
+#include "base/macros.h"
 
 namespace gcm {
 class GCMDriver;
 }
 
 namespace copresence {
 
 // A class to handle GCM messages from the Copresence server. As far as the
 // rest of the system is concerned, it simply provides the registered GCM ID.
 // The implementation will call other classes to enact the message contents.
 class GCMHandler {
  public:
   // Callback to report that registration has completed.
   // Returns an empty ID if registration failed.
   using RegistrationCallback = base::Callback<void(const std::string&)>;
 
   GCMHandler() {}
   virtual ~GCMHandler() {}
 
   // Request the GCM ID. It may be returned now or later, via the callback.
   virtual void GetGcmId(const RegistrationCallback& callback) = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(GCMHandler);
 };
 
 }  // namespace copresence
 
 #endif  // COMPONENTS_COPRESENCE_HANDLERS_GCM_HANDLER_H_