Start and stop the GCM service on demand

chrome/browser/extensions/extension_gcm_app_handler_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/extensions/extension_gcm_app_handler.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/memory/ref_counted.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "base/values.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/test_extension_service.h"
 #include "chrome/browser/extensions/test_extension_system.h"
 #include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/services/gcm/fake_gcm_app_handler.h"
 #include "chrome/browser/services/gcm/fake_gcm_client.h"
 #include "chrome/browser/services/gcm/fake_gcm_client_factory.h"
 #include "chrome/browser/services/gcm/fake_signin_manager.h"
 #include "chrome/browser/services/gcm/gcm_driver.h"
 #include "chrome/browser/services/gcm/gcm_profile_service.h"
 #include "chrome/browser/services/gcm/gcm_profile_service_factory.h"
 #include "chrome/browser/signin/signin_manager_factory.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/test/base/testing_profile.h"
 #include "components/gcm_driver/gcm_client_factory.h"
@@ skipping 341 matching lines @@
   // Sign-in is needed for registration.
   SignIn(kTestingUsername);
 
   // Kick off registration.
   std::vector<std::string> sender_ids;
   sender_ids.push_back("sender1");
   Register(extension->id(), sender_ids);
   waiter()->WaitUntilCompleted();
   EXPECT_EQ(gcm::GCMClient::SUCCESS, registration_result());
 
+  // Add another app handler in order to prevent the GCM service from being
+  // stopped when the extension is uninstalled. This is needed because otherwise
+  // we are not able to receive the unregistration result.
+  GetGCMDriver()->AddAppHandler("Foo", gcm_app_handler());
+
   // Unregistration should be triggered when the extension is uninstalled.
   UninstallExtension(extension);
   waiter()->WaitUntilCompleted();
   EXPECT_EQ(gcm::GCMClient::SUCCESS,
             gcm_app_handler()->unregistration_result());
+
+  // Clean up.
+  GetGCMDriver()->RemoveAppHandler("Foo");
 }
 
 }  // namespace extensions