Add LockLayoutManager responsible for lock container (login/lock).

ash/test/test_shell_delegate.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 "ash/test/test_shell_delegate.h"
 
 #include <limits>
 
 #include "ash/default_accessibility_delegate.h"
 #include "ash/gpu_support_stub.h"
@@ skipping 105 matching lines @@
 void TestShellDelegate::Exit() {
   num_exit_requests_++;
 }
 
 keyboard::KeyboardControllerProxy*
     TestShellDelegate::CreateKeyboardControllerProxy() {
   return new KeyboardControllerProxyStub();
 }
 
 void TestShellDelegate::VirtualKeyboardActivated(bool activated) {
+  FOR_EACH_OBSERVER(ash::VirtualKeyboardStateObserver,
+                    keyboard_state_observer_list_,
+                    OnVirtualKeyboardStateChanged(activated));
 }
 
 void TestShellDelegate::AddVirtualKeyboardStateObserver(
     VirtualKeyboardStateObserver* observer) {
+  keyboard_state_observer_list_.AddObserver(observer);
 }
 
 void TestShellDelegate::RemoveVirtualKeyboardStateObserver(
     VirtualKeyboardStateObserver* observer) {
+  keyboard_state_observer_list_.RemoveObserver(observer);
 }
 
 content::BrowserContext* TestShellDelegate::GetActiveBrowserContext() {
   active_browser_context_.reset(new content::TestBrowserContext());
   return active_browser_context_.get();
 }
 
 app_list::AppListViewDelegate* TestShellDelegate::CreateAppListViewDelegate() {
   return new app_list::test::AppListTestViewDelegate;
 }
@@ skipping 48 matching lines @@
 #if defined(OS_CHROMEOS)
   Shell* shell = Shell::GetInstance();
   static_cast<MediaDelegateImpl*>(shell->media_delegate())
       ->set_media_capture_state(state);
   shell->system_tray_notifier()->NotifyMediaCaptureChanged();
 #endif
 }
 
 }  // namespace test
 }  // namespace ash