Rename nacl::RefCounted to nacl::RefCountedThreadSafe

ppapi/native_client/src/shared/ppapi_proxy/plugin_resource.h

Index: ppapi/native_client/src/shared/ppapi_proxy/plugin_resource.h
diff --git a/ppapi/native_client/src/shared/ppapi_proxy/plugin_resource.h b/ppapi/native_client/src/shared/ppapi_proxy/plugin_resource.h
index 5222127c19c50544f436cb8034f891a8ab7ce886..24ee900f1776d8769034ee08db498e1da9e209cb 100644
--- a/ppapi/native_client/src/shared/ppapi_proxy/plugin_resource.h
+++ b/ppapi/native_client/src/shared/ppapi_proxy/plugin_resource.h
@@ -29,10 +29,9 @@ namespace ppapi_proxy {
 FOR_ALL_RESOURCES(DECLARE_RESOURCE_CLASS)
 #undef DECLARE_RESOURCE_CLASS
 
-class PluginResource : public nacl::RefCounted<PluginResource> {
+class PluginResource : public nacl::RefCountedThreadSafe<PluginResource> {
  public:
   PluginResource();
-  virtual ~PluginResource();
 
   // Returns NULL if the resource is invalid or is a different type.
   template<typename T>
@@ -69,9 +68,13 @@ class PluginResource : public nacl::RefCounted<PluginResource> {
   template <typename T> T* Cast() { return NULL; }
 
  protected:
+  virtual ~PluginResource();
+
   virtual bool InitFromBrowserResource(PP_Resource resource) = 0;
 
  private:
+  friend class nacl::RefCountedThreadSafe<PluginResource>;
+
   // Type-specific getters for individual resource types. These will return
   // NULL if the resource does not match the specified type. Used by the Cast()
   // function.