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

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 8bf7dca4fdbc77d6d1e43dfb30bc6a29cfc9cf51..139c9e6b963790c1e978e29f579beca1d9124ac0 100644
--- a/chrome/browser/ui/ash/chrome_shell_delegate_views.cc
+++ b/chrome/browser/ui/ash/chrome_shell_delegate_views.cc
@@ -74,6 +74,9 @@ bool ChromeShellDelegate::ShouldAlwaysShowAccessibilityMenu() const {
   return false;
 }
 
+void ChromeShellDelegate::SilenceSpokenFeedback() const {
+}
+
 ash::SystemTrayDelegate* ChromeShellDelegate::CreateSystemTrayDelegate() {
   return NULL;
 }