Keep the GCM data intact when the user signs out of the profile

chrome/browser/services/gcm/gcm_profile_service_unittest.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 "chrome/browser/services/gcm/gcm_profile_service.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 237 matching lines @@
 
 TEST_F(GCMProfileServiceTest, RegisterAndUnregister) {
   CreateGCMProfileService();
   SignIn();
 
   std::vector<std::string> sender_ids;
   sender_ids.push_back("sender");
   RegisterAndWaitForCompletion(sender_ids);
 
   std::string expected_registration_id =
-      FakeGCMClient::GetRegistrationIdFromSenderIds(sender_ids);
+      GetGCMClient()->GetRegistrationIdFromSenderIds(sender_ids);
   EXPECT_EQ(expected_registration_id, registration_id());
   EXPECT_EQ(GCMClient::SUCCESS, registration_result());
 
   UnregisterAndWaitForCompletion();
   EXPECT_EQ(GCMClient::SUCCESS, unregistration_result());
 }
 
 TEST_F(GCMProfileServiceTest, Send) {
   CreateGCMProfileService();
   SignIn();
 
   GCMClient::OutgoingMessage message;
   message.id = "1";
   message.data["key1"] = "value1";
   SendAndWaitForCompletion( message);
 
   EXPECT_EQ(message.id, send_message_id());
   EXPECT_EQ(GCMClient::SUCCESS, send_result());
 }
 
 }  // namespace gcm