Add persisted preference for projection touch HUD

chrome/browser/ui/ash/chrome_shell_delegate_views.cc

Index: chrome/browser/ui/ash/chrome_shell_delegate_views.cc
diff --git a/chrome/browser/ui/ash/chrome_shell_delegate_views.cc b/chrome/browser/ui/ash/chrome_shell_delegate_views.cc
index c2bcb8ef83a40f697221242a762ec473d5ca89bb..fed7f89610bd166ec171e3c6b311b75b67a28935 100644
--- a/chrome/browser/ui/ash/chrome_shell_delegate_views.cc
+++ b/chrome/browser/ui/ash/chrome_shell_delegate_views.cc
@@ -123,6 +123,13 @@ 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) {