Fix MediaSource renderer to limit memory consumption.

remoting/webapp/js_proto/dom_proto.js

 // Copyright (c) 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.
 
 // This file contains various hacks needed to inform JSCompiler of various
 // WebKit- and Chrome-specific properties and methods. It is used only with
 // JSCompiler to verify the type-correctness of our code.
 
 /** @type {HTMLElement} */
 Document.prototype.activeElement;
@@ skipping 133 matching lines @@
 
 /**
  * @constructor
  * @extends {EventTargetStub}
  */
 var SourceBuffer = function() {}
 
 /** @type {boolean} */
 SourceBuffer.prototype.updating;
 
+/** @type {TimeRanges} */
+SourceBuffer.prototype.buffered;
+
 /**
  * @param {ArrayBuffer} buffer
  */
 SourceBuffer.prototype.appendBuffer = function(buffer) {}
 
 /**
+ * @param {number} start
+ * @param {number} end
+ */
+SourceBuffer.prototype.remove = function(start, end) {}
+
+/**
  * @constructor
  * @extends {EventTargetStub}
  */
 var MediaSource = function() {}
 
 /**
  * @param {string} format
  * @return {SourceBuffer}
  */
 MediaSource.prototype.addSourceBuffer = function(format) {}
@@ skipping 33 matching lines @@
  * @param {*} reason
  * @return {Promise}
  */
 Promise.reject = function (reason) {};
 
 /**
  * @param {*} value
  * @return {Promise}
  */
 Promise.resolve = function (value) {};