Link GCM heartbeat with wake on wifi preference

components/gcm_driver/gcm_client_impl.cc

 // 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.
 
 #include "components/gcm_driver/gcm_client_impl.h"
 
 #include "base/bind.h"
 #include "base/files/file_path.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 460 matching lines @@
                  weak_ptr_factory_.GetWeakPtr()));
 }
 
 void GCMClientImpl::SetLastTokenFetchTime(const base::Time& time) {
   gcm_store_->SetLastTokenFetchTime(
       time,
       base::Bind(&GCMClientImpl::IgnoreWriteResultCallback,
                  weak_ptr_factory_.GetWeakPtr()));
 }
 
+MCSClient* GCMClientImpl::GetMCSClient() const {
+  return mcs_client_.get();
+}
+
 void GCMClientImpl::StartCheckin() {
   // Make sure no checkin is in progress.
   if (checkin_request_.get())
     return;
 
   checkin_proto::ChromeBuildProto chrome_build_proto;
   ToCheckinProtoVersion(chrome_build_info_, &chrome_build_proto);
   CheckinRequest::RequestInfo request_info(device_checkin_info_.android_id,
                                            device_checkin_info_.secret,
                                            device_checkin_info_.account_tokens,
@@ skipping 499 matching lines @@
 
   recorder_.RecordIncomingSendError(
       data_message_stanza.category(),
       data_message_stanza.to(),
       data_message_stanza.id());
   delegate_->OnMessageSendError(data_message_stanza.category(),
                                 send_error_details);
 }
 
 }  // namespace gcm