Add persisted preference for projection touch HUD

chrome/browser/ui/ash/chrome_shell_delegate_views.cc

 // Copyright 2013 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 "chrome/browser/ui/ash/chrome_shell_delegate.h"
 
 #include "base/command_line.h"
 #include "ash/magnifier/magnifier_constants.h"
 #include "chrome/browser/prefs/session_startup_pref.h"
 #include "chrome/browser/profiles/profile_manager.h"
@@ skipping 105 matching lines @@
 
 void ChromeShellDelegate::HandleMediaNextTrack() {
 }
 
 void ChromeShellDelegate::HandleMediaPlayPause() {
 }
 
 void ChromeShellDelegate::HandleMediaPrevTrack() {
 }
 
+bool ChromeShellDelegate::IsTouchHudProjectionEnabled() const {
+  return false;
+}
+
+void ChromeShellDelegate::ToggleTouchHudProjection() {
+}
+
 void ChromeShellDelegate::Observe(int type,
                                   const content::NotificationSource& source,
                                   const content::NotificationDetails& details) {
   switch (type) {
     case chrome::NOTIFICATION_ASH_SESSION_STARTED: {
       // If we are launched to service a windows 8 search request then let the
       // IPC which carries the search string create the browser and initiate
       // the navigation.
       if (CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kWindows8Search))
@@ skipping 35 matching lines @@
 void ChromeShellDelegate::PlatformInit() {
 #if defined(OS_WIN)
   registrar_.Add(this,
                  chrome::NOTIFICATION_ASH_SESSION_STARTED,
                  content::NotificationService::AllSources());
   registrar_.Add(this,
                  chrome::NOTIFICATION_ASH_SESSION_ENDED,
                  content::NotificationService::AllSources());
 #endif
 }