Fix a bunch of IWYU violators that don't include scoped_ptr.h

google_apis/gcm/engine/connection_handler.h

 // Copyright 2013 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 GOOGLE_APIS_GCM_ENGINE_CONNECTION_HANDLER_H_
 #define GOOGLE_APIS_GCM_ENGINE_CONNECTION_HANDLER_H_
 
 #include "base/callback.h"
+#include "base/memory/scoped_ptr.h"
 #include "google_apis/gcm/base/gcm_export.h"
 
 namespace net{
 class StreamSocket;
 }  // namespace net
 
 namespace google {
 namespace protobuf {
 class MessageLite;
 }  // namespace protobuf
@@ skipping 39 matching lines @@
   // in flight.
   virtual bool CanSendMessage() const = 0;
 
   // Send an MCS protobuf message. CanSendMessage() must be true.
   virtual void SendMessage(const google::protobuf::MessageLite& message) = 0;
 };
 
 }  // namespace gcm
 
 #endif  // GOOGLE_APIS_GCM_ENGINE_CONNECTION_HANDLER_H_