Remaining cleanup (base::Bind): Replacing FileUtilProxy calls with new callback

webkit/plugins/ppapi/ppb_file_io_impl.h

Index: webkit/plugins/ppapi/ppb_file_io_impl.h
diff --git a/webkit/plugins/ppapi/ppb_file_io_impl.h b/webkit/plugins/ppapi/ppb_file_io_impl.h
index 491bf72c6ad817d7e5c7f2dbd59b439569afb043..22845217e13f6081c20a9721150d5a9a5add727f 100644
--- a/webkit/plugins/ppapi/ppb_file_io_impl.h
+++ b/webkit/plugins/ppapi/ppb_file_io_impl.h
@@ -124,8 +124,6 @@ class PPB_FileIO_Impl : public ::ppapi::Resource,
   void WriteCallback(base::PlatformFileError error_code, int bytes_written);
   void WillWriteCallback(base::PlatformFileError error_code, int bytes_written);
 
-  base::WeakPtrFactory<PPB_FileIO_Impl> weak_factory_;
-
   base::PlatformFile file_;
   PP_FileSystemType file_system_type_;
 
@@ -143,7 +141,7 @@ class PPB_FileIO_Impl : public ::ppapi::Resource,
   // of type PP_FILESYSTEMTYPE_LOCAL{PERSISTENT,TEMPORARY} is opened.
   scoped_ptr<QuotaFileIO> quota_file_io_;
 
-  base::WeakPtrFactory<PPB_FileIO_Impl> weak_ptr_factory_;
+  base::WeakPtrFactory<PPB_FileIO_Impl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PPB_FileIO_Impl);
 };