Extract Profile-independent GCMService from GCMProfileService

chrome/browser/invalidation/gcm_invalidation_bridge_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 "base/run_loop.h"
 #include "chrome/browser/invalidation/gcm_invalidation_bridge.h"
 #include "chrome/browser/invalidation/invalidation_auth_provider.h"
 #include "chrome/browser/services/gcm/gcm_profile_service.h"
 #include "chrome/browser/services/gcm/gcm_profile_service_factory.h"
 #include "chrome/browser/signin/fake_profile_oauth2_token_service.h"
@@ skipping 38 matching lines @@
  public:
   explicit FakeInvalidationAuthProvider(
       ProfileOAuth2TokenService* token_service)
       : token_service_(token_service) {}
   virtual ~FakeInvalidationAuthProvider() {}
 
   // InvalidationAuthProvider:
   virtual OAuth2TokenService* GetTokenService() OVERRIDE {
     return token_service_;
   }
+  virtual std::string GetUsername() OVERRIDE { return std::string(); }
   virtual std::string GetAccountId() OVERRIDE { return std::string(); }
   virtual bool ShowLoginUI() OVERRIDE { return false; }
 
  private:
   OAuth2TokenService* token_service_;
 
   DISALLOW_COPY_AND_ASSIGN(FakeInvalidationAuthProvider);
 };
 
 class GCMInvalidationBridgeTest : public ::testing::Test {
@@ skipping 93 matching lines @@
   delegate_->Register(base::Bind(&GCMInvalidationBridgeTest::RegisterFinished,
                                  base::Unretained(this)));
   base::RunLoop run_loop;
   run_loop.RunUntilIdle();
 
   EXPECT_FALSE(registration_id_.empty());
 }
 
 }  // namespace
 }  // namespace invalidation