SilenceSpokenFeedback  435 ash/accelerators/accelerator_controller.cc   delegate->SilenceSpokenFeedback();
SilenceSpokenFeedback   79 ash/accessibility_delegate.h   virtual void SilenceSpokenFeedback() const = 0;
SilenceSpokenFeedback   35 ash/default_accessibility_delegate.h   virtual void SilenceSpokenFeedback() const OVERRIDE;