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

components/gcm_driver/fake_gcm_app_handler.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/gcm_driver/fake_gcm_app_handler.h"
 
 #include "base/run_loop.h"
 
 namespace gcm {
 
 FakeGCMAppHandler::FakeGCMAppHandler()
     : received_event_(NO_EVENT) {
 }
 
 FakeGCMAppHandler::~FakeGCMAppHandler() {
 }
 
 void FakeGCMAppHandler::WaitForNotification() {
   run_loop_.reset(new base::RunLoop);
   run_loop_->Run();
   run_loop_.reset();
 }
 
 void FakeGCMAppHandler::ShutdownHandler() {
 }
 
+void FakeGCMAppHandler::OnStoreReset() {}
+
 void FakeGCMAppHandler::OnMessage(const std::string& app_id,
                                   const IncomingMessage& message) {
   ClearResults();
   received_event_ = MESSAGE_EVENT;
   app_id_ = app_id;
   message_ = message;
   if (run_loop_)
     run_loop_->Quit();
 }
 
@@ skipping 28 matching lines @@
 
 void FakeGCMAppHandler::ClearResults() {
   received_event_ = NO_EVENT;
   app_id_.clear();
   acked_message_id_.clear();
   message_ = IncomingMessage();
   send_error_details_ = GCMClient::SendErrorDetails();
 }
 
 }  // namespace gcm