Adds new webview.loadDataWithBaseUrl API to allow data URLs to be loaded with a specified base URL …

extensions/renderer/resources/web_view_experimental.js

 // Copyright 2014 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 module implements experimental API for <webview>.
 // See web_view.js for details.
 //
 // <webview> Experimental API is only available on canary and dev channels of
 // Chrome.
 
 var WebViewInternal = require('webView').WebViewInternal;
+var WebView = require('webViewInternal').WebView;
 
 WebViewInternal.prototype.maybeGetExperimentalEvents = function() {
   return {};
 };
 
 /** @private */
 WebViewInternal.prototype.maybeGetExperimentalPermissions = function() {
   return [];
 };
 
 /** @private */
 WebViewInternal.prototype.captureVisibleRegion = function(spec, callback) {
   WebView.captureVisibleRegion(this.guestInstanceId, spec, callback);
 };
 
+/** @private */
+WebViewInternal.prototype.loadDataWithBaseUrl = function(
+    dataUrl, baseUrl, virtualUrl) {
+  if (!this.guestInstanceId) {
+    return;
+  }
+  WebView.loadDataWithBaseUrl(
+      this.guestInstanceId, dataUrl, baseUrl, virtualUrl, function () {
+        // Report any errors.
+        if (chrome.runtime.lastError != undefined) {
+          window.console.error(
+              "Error while running webview.loadDataWithBaseUrl: " +
+                  chrome.runtime.lastError.message);
+        }
+      });
+};
+
 WebViewInternal.maybeRegisterExperimentalAPIs = function(proto) {
   proto.captureVisibleRegion = function(spec, callback) {
     privates(this).internal.captureVisibleRegion(spec, callback);
   };
+
+  proto.loadDataWithBaseUrl = function(dataUrl, baseUrl, virtualUrl) {
+    privates(this).internal.loadDataWithBaseUrl(dataUrl, baseUrl, virtualUrl);
+  }
 };