<webview>: Resolve relative paths as chrome-extension: URLs

chrome/renderer/resources/extensions/web_view.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.
 
 // Shim that simulates a <webview> tag via Mutation Observers.
 //
 // The actual tag is implemented via the browser plugin. The internals of this
 // are hidden via Shadow DOM.
 
 'use strict';
@@ skipping 628 matching lines @@
 /**
  * @private
  */
 WebViewInternal.prototype.handleLoadCommitEvent_ =
     function(event, webViewEvent) {
   this.currentEntryIndex_ = event.currentEntryIndex;
   this.entryCount_ = event.entryCount;
   this.processId_ = event.processId;
   var oldValue = this.webviewNode_.getAttribute('src');
   var newValue = event.url;
-  if (event.isTopLevel && (oldValue != newValue)) {
+  if (event.isTopLevel && !DocumentNatives.CompareURLs(oldValue, newValue)) {
     // Touching the src attribute triggers a navigation. To avoid
     // triggering a page reload on every guest-initiated navigation,
     // we use the flag ignoreNextSrcAttributeChange_ here.
     this.ignoreNextSrcAttributeChange_ = true;
     this.webviewNode_.setAttribute('src', newValue);
   }
   this.webviewNode_.dispatchEvent(webViewEvent);
 }
 
 /**
@@ skipping 350 matching lines @@
  * Implemented when the experimental API is available.
  * @private
  */
 WebViewInternal.prototype.maybeGetExperimentalPermissions_ = function() {
   return [];
 };
 
 exports.WebView = WebView;
 exports.WebViewInternal = WebViewInternal;
 exports.CreateEvent = CreateEvent;