Support Shift+Search+Arrows to navigate and Control to silence speech everywhere

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/caps_lock_delegate_stub.h"
 #include "ash/host/root_window_host_factory.h"
@@ skipping 121 matching lines @@
 }
 
 MagnifierType TestShellDelegate::GetMagnifierType() const {
   return screen_magnifier_type_;
 }
 
 bool TestShellDelegate::ShouldAlwaysShowAccessibilityMenu() const {
   return false;
 }
 
+void TestShellDelegate::SilenceSpokenFeedback() const {
+}
+
 app_list::AppListViewDelegate* TestShellDelegate::CreateAppListViewDelegate() {
   return NULL;
 }
 
 LauncherDelegate* TestShellDelegate::CreateLauncherDelegate(
     ash::LauncherModel* model) {
   return new TestLauncherDelegate(model);
 }
 
 SystemTrayDelegate* TestShellDelegate::CreateSystemTrayDelegate() {
@@ skipping 61 matching lines @@
 base::string16 TestShellDelegate::GetProductName() const {
   return base::string16();
 }
 
 TestSessionStateDelegate* TestShellDelegate::test_session_state_delegate() {
   return test_session_state_delegate_;
 }
 
 }  // namespace test
 }  // namespace ash