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

webkit/plugins/ppapi/resource_creation_impl.cc

 // 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.
 
 #include "webkit/plugins/ppapi/resource_creation_impl.h"
 
 #include "ppapi/c/pp_size.h"
 #include "ppapi/shared_impl/input_event_impl.h"
 #include "ppapi/shared_impl/var.h"
 #include "webkit/plugins/ppapi/common.h"
@@ skipping 243 matching lines @@
   data.event_modifiers = modifiers;
   data.mouse_button = mouse_button;
   data.mouse_position = *mouse_position;
   data.mouse_click_count = click_count;
 
   return PPB_InputEvent_Impl::Create(instance_, data);
 }
 
 PP_Resource ResourceCreationImpl::CreateScrollbar(PP_Instance instance,
                                                   PP_Bool vertical) {
-  return ReturnResource(new PPB_Scrollbar_Impl(instance_, PP_ToBool(vertical)));
+  return PPB_Scrollbar_Impl::Create(instance_, PP_ToBool(vertical));
 }
 
 PP_Resource ResourceCreationImpl::CreateSurface3D(
     PP_Instance instance,
     PP_Config3D_Dev config,
     const int32_t* attrib_list) {
   return PPB_Surface3D_Impl::Create(instance_, config, attrib_list);
 }
 
 PP_Resource ResourceCreationImpl::CreateTransport(PP_Instance instance,
@@ skipping 43 matching lines @@
   data.event_modifiers = modifiers;
   data.wheel_delta = *wheel_delta;
   data.wheel_ticks = *wheel_ticks;
   data.wheel_scroll_by_page = PP_ToBool(scroll_by_page);
 
   return PPB_InputEvent_Impl::Create(instance_, data);
 }
 
 }  // namespace ppapi
 }  // namespace webkit