Remove all code for chrome.experimental.speechInput extension API

chrome/common/chrome_notification_types.h

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_COMMON_CHROME_NOTIFICATION_TYPES_H_
 #define CHROME_COMMON_CHROME_NOTIFICATION_TYPES_H_
 
 #include "build/build_config.h"
 #include "content/public/browser/notification_types.h"
 
@@ skipping 632 matching lines @@
   NOTIFICATION_EXTENSION_OMNIBOX_SUGGESTIONS_READY,
 
   // Sent when the user accepts the input in an extension omnibox keyword
   // session. The source is the profile.
   NOTIFICATION_EXTENSION_OMNIBOX_INPUT_ENTERED,
 
   // Sent when an omnibox extension has updated the default suggestion. The
   // source is the profile.
   NOTIFICATION_EXTENSION_OMNIBOX_DEFAULT_SUGGESTION_CHANGED,
 
-  // Sent when a recording session for speech input has started.
-  NOTIFICATION_EXTENSION_SPEECH_INPUT_RECORDING_STARTED,
-
-  // Sent when a recording session for speech input has stopped.
-  NOTIFICATION_EXTENSION_SPEECH_INPUT_RECORDING_STOPPED,
-
-  // Sent when a recording session for speech input has failed.
-  NOTIFICATION_EXTENSION_SPEECH_INPUT_FAILED,
-
   // Sent when the extension updater starts checking for updates to installed
   // extensions. The source is a Profile, and there are no details.
   NOTIFICATION_EXTENSION_UPDATING_STARTED,
 
   // The extension updater found an update and will attempt to download and
   // install it. The source is a Profile, and the details are an
   // extensions::UpdateDetails object with the extension id and version of the
   // found update.
   NOTIFICATION_EXTENSION_UPDATE_FOUND,
 
@@ skipping 565 matching lines @@
   // Note:-
   // Currently only Content and Chrome define and use notifications.
   // Custom notifications not belonging to Content and Chrome should start
   // from here.
   NOTIFICATION_CHROME_END,
 };
 
 }  // namespace chrome
 
 #endif  // CHROME_COMMON_CHROME_NOTIFICATION_TYPES_H_