Do not toggle Applist with Search key press when accessibility is enabled.

chrome/browser/chromeos/system/ash_system_tray_delegate.cc

Index: chrome/browser/chromeos/system/ash_system_tray_delegate.cc
diff --git a/chrome/browser/chromeos/system/ash_system_tray_delegate.cc b/chrome/browser/chromeos/system/ash_system_tray_delegate.cc
index e98386d800a88e28d94e483e6c8ee0d0c168c5fa..65d6271bf071c3ec3d73d01d01196bcce1522c11 100644
--- a/chrome/browser/chromeos/system/ash_system_tray_delegate.cc
+++ b/chrome/browser/chromeos/system/ash_system_tray_delegate.cc
@@ -362,14 +362,6 @@ class SystemTrayDelegate : public ash::SystemTrayDelegate,
     return ime_manager->GetXKeyboard()->SetCapsLockEnabled(enabled);
   }
 
-  virtual bool IsInAccessibilityMode() const OVERRIDE {
-    return accessibility_enabled_.GetValue();
-  }
-
-  virtual void SetEnableSpokenFeedback(bool enable) OVERRIDE {
-    chromeos::accessibility::EnableSpokenFeedback(enable, NULL);
-  }
-
   virtual void ShutDown() OVERRIDE {
     DBusThreadManager::Get()->GetPowerManagerClient()->RequestShutdown();
   }