[GCM] Stop/restart GCM when the state is forced off/on

chrome/browser/services/gcm/gcm_client_mock.cc

 // 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.
 
 #include "chrome/browser/services/gcm/gcm_client_mock.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "base/sys_byteorder.h"
@@ skipping 35 matching lines @@
 }
 
 void GCMClientMock::DoLoading() {
   status_ = LOADED;
   base::MessageLoop::current()->PostTask(
       FROM_HERE,
       base::Bind(&GCMClientMock::CheckinFinished,
                  weak_ptr_factory_.GetWeakPtr()));
 }
 
+void GCMClientMock::Stop() {
+  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::IO));
+  status_ = STOPPED;
+}
+
 void GCMClientMock::CheckOut() {
   DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::IO));
   status_ = CHECKED_OUT;
 }
 
 void GCMClientMock::Register(const std::string& app_id,
                              const std::string& cert,
                              const std::vector<std::string>& sender_ids) {
   DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::IO));
 
@@ skipping 117 matching lines @@
     delegate_->OnMessagesDeleted(app_id);
 }
 
 void GCMClientMock::MessageSendError(const std::string& app_id,
                                      const std::string& message_id) {
   if (delegate_)
     delegate_->OnMessageSendError(app_id, message_id, NETWORK_ERROR);
 }
 
 }  // namespace gcm