Relanding this with fixes to the mac dbg builder

webkit/plugins/ppapi/resource_helper.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 WEBKIT_PLUGINS_PPAPI_RESOURCE_HELPER_H_
 #define WEBKIT_PLUGINS_PPAPI_RESOURCE_HELPER_H_
 
 #include "base/basictypes.h"
+#include "ppapi/c/pp_instance.h"
 #include "ppapi/c/pp_resource.h"
 #include "webkit/plugins/webkit_plugins_export.h"
 
 namespace ppapi {
 class Resource;
 }
 
 namespace webkit {
 namespace ppapi {
 
@@ skipping 14 matching lines @@
 
   // Returns the module for the given resource, or NULL if the resource has
   // outlived its instance.
   WEBKIT_PLUGINS_EXPORT static PluginModule* GetPluginModule(
       const ::ppapi::Resource* resource);
 
   // Returns the plugin delegate for the given resource, or NULL if the
   // resource has outlived its instance.
   static PluginDelegate* GetPluginDelegate(const ::ppapi::Resource* resource);
 
+  // Returns the instance implementation object for the pp_instance.
+  static PluginInstance* PPInstanceToPluginInstance(PP_Instance instance);
+
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(ResourceHelper);
 };
 
 }  // namespace ppapi
 }  // namespace webkit
 
 #endif  // WEBKIT_PLUGINS_PPAPI_RESOURCE_IMPL_HELPER_H_