Convert more interfaces to the new thunk system.

ppapi/proxy/resource_creation_proxy.h

Index: ppapi/proxy/resource_creation_proxy.h
===================================================================
--- ppapi/proxy/resource_creation_proxy.h	(revision 87260)
+++ ppapi/proxy/resource_creation_proxy.h	(working copy)
@@ -29,7 +29,7 @@
   ResourceCreationProxy(Dispatcher* dispatcher);
   virtual ~ResourceCreationProxy();
 
-  virtual ::ppapi::thunk::ResourceCreationAPI* AsResourceCreation() OVERRIDE;
+  virtual ::ppapi::thunk::ResourceCreationAPI* AsResourceCreationAPI() OVERRIDE;
 
   // ResourceCreationAPI (called in plugin).
   virtual PP_Resource CreateAudio(PP_Instance instance,
@@ -43,6 +43,15 @@
   virtual PP_Resource CreateBroker(PP_Instance instance) OVERRIDE;
   virtual PP_Resource CreateBuffer(PP_Instance instance,
                                    uint32_t size) OVERRIDE;
+  virtual PP_Resource CreateDirectoryReader(PP_Resource directory_ref) OVERRIDE;
+  virtual PP_Resource CreateFileChooser(
+      PP_Instance instance,
+      const PP_FileChooserOptions_Dev* options) OVERRIDE;
+  virtual PP_Resource CreateFileIO(PP_Instance instance) OVERRIDE;
+  virtual PP_Resource CreateFileRef(PP_Resource file_system,
+                                    const char* path) OVERRIDE;
+  virtual PP_Resource CreateFileSystem(PP_Instance instance,
+                                       PP_FileSystemType_Dev type) OVERRIDE;
   virtual PP_Resource CreateFontObject(
       PP_Instance instance,
       const PP_FontDescription_Dev* description) OVERRIDE;