Cancel any pending speech recognitions when the dispatcher host terminates.

chrome/browser/speech/speech_input_manager.h

Index: chrome/browser/speech/speech_input_manager.h
diff --git a/chrome/browser/speech/speech_input_manager.h b/chrome/browser/speech/speech_input_manager.h
index 83bde90c0d10362023ccb4d97bfa9363f8cda673..2c607adb3cdedf222bb185bf16e085d2b3457751 100644
--- a/chrome/browser/speech/speech_input_manager.h
+++ b/chrome/browser/speech/speech_input_manager.h
@@ -63,6 +63,8 @@ class SpeechInputManager {
                                 const std::string& origin_url)  = 0;
   virtual void CancelRecognition(int caller_id) = 0;
   virtual void StopRecording(int caller_id) = 0;
+
+  virtual void CancelAllRequestsWithDelegate(Delegate* delegate) = 0;
 };
 
 // This typedef is to workaround the issue with certain versions of