Implement writing mic audio input data to file for debugging purposes.

content/browser/resources/media/dump_creator.js

 // Copyright (c) 2013 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.
 
 
 /**
  * Provides the UI for dump creation.
  */
 var DumpCreator = (function() {
   /**
@@ skipping 39 matching lines @@
         ' recommended to choose a new base filename each time or move' +
         ' the resulting files before enabling again. If track processing is' +
         ' disabled (--disable-audio-track-processing): (1) Only one recording' +
         ' per render process is supported. (2) When the box is unchecked or' +
         ' this page is closed, ongoing recordings will continue until the' +
         ' call ends or the page with the recording is closed</p>';
 
     content.getElementsByTagName('a')[0].addEventListener(
         'click', this.onDownloadData_.bind(this));
     content.getElementsByTagName('input')[0].addEventListener(
-        'click', this.onAecRecordingChanged_.bind(this));
+        'click', this.onAudioDebugRecordingsChanged_.bind(this));
   }
 
   DumpCreator.prototype = {
-    // Mark the AEC recording checkbox checked.
-    enableAecRecording: function() {
+    // Mark the diagnostic audio recording checkbox checked.
+    enableAudioDebugRecordings: function() {
       this.root_.getElementsByTagName('input')[0].checked = true;
     },
 
-    // Mark the AEC recording checkbox unchecked.
-    disableAecRecording: function() {
+    // Mark the diagnostic audio recording checkbox unchecked.
+    disableAudioDebugRecordings: function() {
       this.root_.getElementsByTagName('input')[0].checked = false;
     },
 
     /**
      * Downloads the PeerConnection updates and stats data as a file.
      *
      * @private
      */
     onDownloadData_: function() {
       var dump_object =
       {
         'getUserMedia': userMediaRequests,
         'PeerConnections': peerConnectionDataStore,
       };
       var textBlob = new Blob([JSON.stringify(dump_object, null, ' ')],
                               {type: 'octet/stream'});
       var URL = window.URL.createObjectURL(textBlob);
 
       var anchor = this.root_.getElementsByTagName('a')[0];
       anchor.href = URL;
       anchor.download = 'webrtc_internals_dump.txt';
       // The default action of the anchor will download the URL.
     },
 
     /**
-     * Handles the event of toggling the AEC recording state.
+     * Handles the event of toggling the audio debug recordings state.
      *
      * @private
      */
-    onAecRecordingChanged_: function() {
+    onAudioDebugRecordingsChanged_: function() {
       var enabled = this.root_.getElementsByTagName('input')[0].checked;
       if (enabled) {
-        chrome.send('enableAecRecording');
+        chrome.send('enableAudioDebugRecordings');
       } else {
-        chrome.send('disableAecRecording');
+        chrome.send('disableAudioDebugRecordings');
       }
     },
   };
   return DumpCreator;
 })();