<webview>: Implement fullscreen permission for html5 element.requestFullscreen()

extensions/renderer/resources/guest_view/web_view/web_view_action_requests.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 helper objects for the dialog, newwindow, and
 // permissionrequest <webview> events.
 
 var MessagingNatives = requireNative('messaging_natives');
 var WebViewConstants = require('webViewConstants').WebViewConstants;
 var WebViewInternal = require('webViewInternal').WebViewInternal;
 
 var PERMISSION_TYPES = ['media',
                         'geolocation',
                         'pointerLock',
                         'download',
                         'loadplugin',
-                        'filesystem'];
+                        'filesystem',
+                        'fullscreen'];
 
 // -----------------------------------------------------------------------------
 // WebViewActionRequest object.
 
 // Default partial implementation of a webview action request.
 function WebViewActionRequest(webViewImpl, event, webViewEvent, interfaceName) {
   this.webViewImpl = webViewImpl;
   this.event = event;
   this.webViewEvent = webViewEvent;
   this.interfaceName = interfaceName;
@@ skipping 215 matching lines @@
   return true;
 };
 
 PermissionRequest.prototype.ERROR_MSG_ACTION_ALREADY_TAKEN =
     WebViewConstants.ERROR_MSG_PERMISSION_ACTION_ALREADY_TAKEN;
 PermissionRequest.prototype.WARNING_MSG_REQUEST_BLOCKED =
     WebViewConstants.WARNING_MSG_PERMISSION_REQUEST_BLOCKED;
 
 // -----------------------------------------------------------------------------
 
+// FullscreenPermissionRequest object.
+
+// Represents a fullscreen permission request.
+function FullscreenPermissionRequest(webViewImpl, event, webViewEvent) {
+  PermissionRequest.call(this, webViewImpl, event, webViewEvent);
+}
+
+FullscreenPermissionRequest.prototype.__proto__ = PermissionRequest.prototype;
+
+FullscreenPermissionRequest.prototype.getInterfaceObject = function() {
+  return {
+    allow: function() {
+      this.validateCall();
+      WebViewInternal.setPermission(
+          this.guestInstanceId, this.requestId, 'allow');
+      // Now make the <webview> element go fullscreen.
+      this.webViewImpl.makeElementFullscreen();
+    }.bind(this),
+    deny: function() {
+      this.validateCall();
+      WebViewInternal.setPermission(
+          this.guestInstanceId, this.requestId, 'deny');
+    }.bind(this)
+  };
+};
+
 var WebViewActionRequests = {
   WebViewActionRequest: WebViewActionRequest,
   Dialog: Dialog,
   NewWindow: NewWindow,
-  PermissionRequest: PermissionRequest
+  PermissionRequest: PermissionRequest,
+  FullscreenPermissionRequest: FullscreenPermissionRequest
 };
 
 exports.WebViewActionRequests = WebViewActionRequests;