Fixed channel switch when user decides to switch to another channel in

chromeos/dbus/fake_update_engine_client.cc

 // Copyright (c) 2012 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 "chromeos/dbus/fake_update_engine_client.h"
 
 namespace chromeos {
 
 FakeUpdateEngineClient::FakeUpdateEngineClient()
     : update_check_result_(UpdateEngineClient::UPDATE_RESULT_SUCCESS),
       can_rollback_stub_result_(false),
       reboot_after_update_call_count_(0),
+      request_update_check_call_count_(0),
       rollback_call_count_(0),
       can_rollback_call_count_(0) {
 }
 
 FakeUpdateEngineClient::~FakeUpdateEngineClient() {
 }
 
 void FakeUpdateEngineClient::Init(dbus::Bus* bus) {
 }
 
 void FakeUpdateEngineClient::AddObserver(Observer* observer) {
   observers_.AddObserver(observer);
 }
 
 void FakeUpdateEngineClient::RemoveObserver(Observer* observer) {
   observers_.RemoveObserver(observer);
 }
 
 bool FakeUpdateEngineClient::HasObserver(Observer* observer) {
-  return false;
+  return observers_.HasObserver(observer);
 }
 
 void FakeUpdateEngineClient::RequestUpdateCheck(
     const UpdateCheckCallback& callback) {
+  request_update_check_call_count_++;
   callback.Run(update_check_result_);
 }
 
 void FakeUpdateEngineClient::Rollback() {
   rollback_call_count_++;
 }
 
 void FakeUpdateEngineClient::CanRollbackCheck(
     const RollbackCheckCallback& callback) {
   can_rollback_call_count_++;
@@ skipping 30 matching lines @@
     const UpdateEngineClient::Status& status) {
   default_status_ = status;
 }
 
 void FakeUpdateEngineClient::set_update_check_result(
     const UpdateEngineClient::UpdateCheckResult& result) {
   update_check_result_ = result;
 }
 
 }  // namespace chromeos