Pepper and WebKit API change to support a plugin knowing if a scrollbar is an overlay one.

ppapi/cpp/instance.h

 // 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.
 
 #ifndef PPAPI_CPP_INSTANCE_H_
 #define PPAPI_CPP_INSTANCE_H_
 
 /// @file
 /// Defines the C++ wrapper for a plugin instance.
 ///
@@ skipping 16 matching lines @@
 class Graphics3D_Dev;
 class InputEvent;
 class ImageData;
 class Point;
 class Rect;
 class Rect;
 class Resource;
 class Surface3D_Dev;
 class URLLoader;
 class Var;
-class Widget_Dev;
 
 class Instance {
  public:
   /// Construction of an instance should only be done in response to a browser
   /// request in Module::CreateInstance. Otherwise, the instance will lack the
   /// proper bookkeeping in the browser and in the C++ wrapper.
   ///
   /// Init() will be called immediately after the constructor. This allows you
   /// to perform initialization tasks that can fail and to report that failure
   /// to the browser.
@@ skipping 419 matching lines @@
   typedef std::map<std::string, void*> InterfaceNameToObjectMap;
   InterfaceNameToObjectMap interface_name_to_objects_;
 };
 
 }  // namespace pp
 
 /// @}
 /// End addtogroup CPP
 
 #endif  // PPAPI_CPP_INSTANCE_H_