Change the DidChangeView update to take a new ViewChanged resource.

ppapi/api/ppb_fullscreen.idl

 /* Copyright (c) 2011 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 defines the <code>PPB_Fullscreen</code> interface.
  */
 
 label Chrome {
   M16 = 1.0
 };
 
 interface PPB_Fullscreen {
   /**
    * Checks whether the plugin instance is currently in fullscreen mode.
+   *
+   * This function returns the same result as
+   * PPB_Instance.GetView().IsFullscreen().
    */
   PP_Bool IsFullscreen(
       [in] PP_Instance instance);
 
   /**
    * Switches the plugin instance to/from fullscreen mode. Returns PP_TRUE on
    * success, PP_FALSE on failure.
    *
    * The transition to and from fullscreen is asynchronous.
    * During the transition, IsFullscreen will return the original value, and
@@ skipping 10 matching lines @@
 
   /**
    * Gets the size of the screen in pixels. When going fullscreen, the instance
    * will be resized to that size.
    */
   PP_Bool GetScreenSize(
       [in] PP_Instance instance,
       [out] PP_Size size);
 };