Split web_view_internal_api and move part of it to extensions.

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.
 
 // This module implements Webview (<webview>) as a custom element that wraps a
 // BrowserPlugin object element. The object element is hidden within
 // the shadow DOM of the Webview element.
 
 var DocumentNatives = requireNative('document_natives');
 var GuestViewInternal =
     require('binding').Binding.create('guestViewInternal').generate();
 var IdGenerator = requireNative('id_generator');
+var ChromeWebView = require('chromeWebViewInternal').ChromeWebView
 // TODO(lazyboy): Rename this to WebViewInternal and call WebViewInternal
 // something else.
 var WebView = require('webViewInternal').WebView;
 var WebViewEvents = require('webViewEvents').WebViewEvents;
 var guestViewInternalNatives = requireNative('guest_view_internal');
 
 var WEB_VIEW_ATTRIBUTE_AUTOSIZE = 'autosize';
 var WEB_VIEW_ATTRIBUTE_MAXHEIGHT = 'maxheight';
 var WEB_VIEW_ATTRIBUTE_MAXWIDTH = 'maxwidth';
 var WEB_VIEW_ATTRIBUTE_MINHEIGHT = 'minheight';
@@ skipping 208 matching lines @@
 };
 
 /**
  * @private
  */
 WebViewInternal.prototype.clearData = function() {
   if (!this.guestInstanceId) {
     return;
   }
   var args = $Array.concat([this.guestInstanceId], $Array.slice(arguments));
-  $Function.apply(WebView.clearData, null, args);
+  $Function.apply(ChromeWebView.clearData, null, args);
 };
 
 /**
  * @private
  */
 WebViewInternal.prototype.getProcessId = function() {
   return this.processId;
 };
 
 /**
@@ skipping 776 matching lines @@
  * Calls to show contextmenu right away instead of dispatching a 'contextmenu'
  * event.
  * This will be overridden in web_view_experimental.js to implement contextmenu
  * API.
  */
 WebViewInternal.prototype.maybeHandleContextMenu = function(e, webViewEvent) {
   var requestId = e.requestId;
   // Setting |params| = undefined will show the context menu unmodified, hence
   // the 'contextmenu' API is disabled for stable channel.
   var params = undefined;
-  WebView.showContextMenu(this.guestInstanceId, requestId, params);
+  ChromeWebView.showContextMenu(this.guestInstanceId, requestId, params);
 };
 
 /**
  * Implemented when the experimental API is available.
  * @private
  */
 WebViewInternal.prototype.setupExperimentalContextMenus = function() {};
 
 exports.WebView = WebView;
 exports.WebViewInternal = WebViewInternal;