PPAPI: Make blocking completion callbacks work.

webkit/plugins/ppapi/file_callbacks.cc

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2012 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.
 
 #include "webkit/plugins/ppapi/file_callbacks.h"
 
 #include "base/logging.h"
 #include "ppapi/c/pp_file_info.h"
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/c/ppb_file_system.h"
 #include "ppapi/shared_impl/file_type_conversion.h"
 #include "ppapi/shared_impl/time_conversion.h"
 #include "ppapi/shared_impl/tracked_callback.h"
 #include "webkit/fileapi/file_system_types.h"
 #include "webkit/plugins/ppapi/plugin_module.h"
 #include "webkit/plugins/ppapi/ppb_directory_reader_impl.h"
 #include "webkit/plugins/ppapi/ppb_file_system_impl.h"
 
 using ppapi::Resource;
 using ppapi::TimeToPPTime;
 using ppapi::TrackedCallback;
 
 namespace webkit {
 namespace ppapi {
 
 FileCallbacks::FileCallbacks(
     Resource* resource,
-    PP_CompletionCallback callback,
+    scoped_refptr<TrackedCallback> callback,
     PP_FileInfo* info,
     scoped_refptr<PPB_FileSystem_Impl> file_system,
     scoped_refptr<PPB_DirectoryReader_Impl> directory_reader)
-    : callback_(new TrackedCallback(resource, callback)),
+    : callback_(callback),
       info_(info),
       file_system_(file_system),
       directory_reader_(directory_reader) {
 }
 
 FileCallbacks::~FileCallbacks() {}
 
 void FileCallbacks::DidSucceed() {
   if (callback_->completed())
     return;
@@ skipping 55 matching lines @@
 
 void FileCallbacks::RunCallback(base::PlatformFileError error_code) {
   if (callback_->completed())
     return;
 
   callback_->Run(::ppapi::PlatformFileErrorToPepperError(error_code));
 }
 
 }  // namespace ppapi
 }  // namespace webkit