Fixes a memory leak when running webrtc-internals for a long time, by using a circular buffer of si…

content/browser/resources/media/webrtc_internals.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.
 
 
 var peerConnectionsListElem = null;
 var ssrcInfoManager = null;
 var peerConnectionUpdateTable = null;
 var statsTable = null;
 var dumpCreator = null;
 
+// The maximum number of data points bufferred for each stats. Old data points
+// will be shifted out when the buffer is full.
+var MAX_STATS_DATA_POINT_BUFFER_SIZE = 1000;
+
 <include src="ssrc_info_manager.js"/>
 <include src="stats_graph_helper.js"/>
 <include src="stats_table.js"/>
 <include src="peer_connection_update_table.js"/>
 <include src="dump_creator.js"/>
 
 function initialize() {
   peerConnectionsListElem = $('peer-connections-list');
   dumpCreator = new DumpCreator(peerConnectionsListElem);
   ssrcInfoManager = new SsrcInfoManager();
@@ skipping 141 matching lines @@
 
 
 /**
  * Delegates to dumpCreator to update the recording status.
  * @param {!Object.<string>} update Key-value pairs describing the status of the
  *     RTP recording.
  */
 function updateDumpStatus(update) {
   dumpCreator.onUpdate(update);
 }