Move the refcounting from the proxy/impl resource object to the shared resource object base class.

webkit/plugins/ppapi/resource.h

Index: webkit/plugins/ppapi/resource.h
diff --git a/webkit/plugins/ppapi/resource.h b/webkit/plugins/ppapi/resource.h
index 67c46522a827a9e08592d38aed5e4de7e3adde87..445fd58293b17063da36576458dff97fe25db7a6 100644
--- a/webkit/plugins/ppapi/resource.h
+++ b/webkit/plugins/ppapi/resource.h
@@ -6,7 +6,6 @@
 #define WEBKIT_PLUGINS_PPAPI_RESOURCE_H_
 
 #include "base/basictypes.h"
-#include "base/memory/ref_counted.h"
 #include "ppapi/c/pp_resource.h"
 #include "ppapi/shared_impl/resource_object_base.h"
 #include "webkit/plugins/ppapi/resource_tracker.h"
@@ -14,8 +13,7 @@
 namespace webkit {
 namespace ppapi {
 
-class Resource : public base::RefCountedThreadSafe<Resource>,
-                 public ::ppapi::ResourceObjectBase {
+class Resource : public ::ppapi::ResourceObjectBase {
  public:
   explicit Resource(PluginInstance* instance);
   virtual ~Resource();