Notify GCMAppHandlers when the store is reset, so they clear cached IDs

components/invalidation/impl/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 "components/invalidation/impl/gcm_invalidation_bridge.h"
 
 #include <memory>
 
 #include "base/bind.h"
 #include "base/location.h"
@@ skipping 47 matching lines @@
     token_service_->UpdateCredentials("", "fake_refresh_token");
     gcm_driver_.reset(new CustomFakeGCMDriver());
 
     identity_provider_.reset(new FakeIdentityProvider(token_service_.get()));
     bridge_.reset(new GCMInvalidationBridge(gcm_driver_.get(),
                                             identity_provider_.get()));
 
     delegate_ = bridge_->CreateDelegate();
     delegate_->Initialize(
         base::Bind(&GCMInvalidationBridgeTest::ConnectionStateChanged,
-                   base::Unretained(this)));
+                   base::Unretained(this)),
+        base::Bind(&base::DoNothing) /* store_reset_callback */);
     RunLoop();
   }
 
   void RunLoop() {
     base::RunLoop run_loop;
     run_loop.RunUntilIdle();
   }
 
  public:
   void RegisterFinished(const std::string& registration_id,
@@ skipping 72 matching lines @@
   bridge_->OnConnected(net::IPEndPoint());
   RunLoop();
   EXPECT_TRUE(connection_online_);
   bridge_->OnDisconnected();
   RunLoop();
   EXPECT_FALSE(connection_online_);
 }
 
 }  // namespace
 }  // namespace invalidation