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

webkit/plugins/ppapi/plugin_module.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/plugin_module.h"
 
 #include <set>
 
 #include "base/command_line.h"
 #include "base/logging.h"
@@ skipping 285 matching lines @@
     return PPB_Memory_Impl::GetInterface();
   if (strcmp(name, PPB_MESSAGING_INTERFACE_1_0) == 0)
     return ::ppapi::thunk::GetPPB_Messaging_Thunk();
   if (strcmp(name, PPB_MOUSE_INPUT_EVENT_INTERFACE_1_0) == 0)
     return ::ppapi::thunk::GetPPB_MouseInputEvent_Thunk();
   if (strcmp(name, PPB_PROXY_PRIVATE_INTERFACE) == 0)
     return PPB_Proxy_Impl::GetInterface();
   if (strcmp(name, PPB_QUERY_POLICY_DEV_INTERFACE_0_1) == 0)
     return ::ppapi::thunk::GetPPB_QueryPolicy_Thunk();
   if (strcmp(name, PPB_SCROLLBAR_DEV_INTERFACE_0_4) == 0)
-    return ::ppapi::thunk::GetPPB_Scrollbar_Thunk();
+    return PPB_Scrollbar_Impl::Get0_4Interface();
   if (strcmp(name, PPB_SCROLLBAR_DEV_INTERFACE_0_3) == 0)
     return PPB_Scrollbar_Impl::Get0_3Interface();
+  if (strcmp(name, PPB_SCROLLBAR_DEV_INTERFACE_0_5) == 0)
+    return ::ppapi::thunk::GetPPB_Scrollbar_Thunk();
   if (strcmp(name, PPB_UMA_PRIVATE_INTERFACE) == 0)
     return PPB_UMA_Private_Impl::GetInterface();
   if (strcmp(name, PPB_URLLOADER_INTERFACE_1_0) == 0)
     return ::ppapi::thunk::GetPPB_URLLoader_Thunk();
   if (strcmp(name, PPB_URLLOADERTRUSTED_INTERFACE) == 0)
     return ::ppapi::thunk::GetPPB_URLLoaderTrusted_Thunk();
   if (strcmp(name, PPB_URLREQUESTINFO_INTERFACE_1_0) == 0)
     return ::ppapi::thunk::GetPPB_URLRequestInfo_Thunk();
   if (strcmp(name, PPB_URLRESPONSEINFO_INTERFACE_1_0) == 0)
     return ::ppapi::thunk::GetPPB_URLResponseInfo_Thunk();
@@ skipping 271 matching lines @@
   int retval = entry_points.initialize_module(pp_module(), &GetInterface);
   if (retval != 0) {
     LOG(WARNING) << "PPP_InitializeModule returned failure " << retval;
     return false;
   }
   return true;
 }
 
 }  // namespace ppapi
 }  // namespace webkit