Add a unified resource tracker shared between the proxy and the impl.

webkit/plugins/ppapi/ppb_file_system_impl.cc

 // Copyright (c) 2011 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/ppb_file_system_impl.h"
 
 #include "base/memory/ref_counted.h"
 #include "ppapi/c/pp_completion_callback.h"
 #include "ppapi/c/ppb_file_system.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebDocument.h"
@@ skipping 28 matching lines @@
 PPB_FileSystem_Impl::~PPB_FileSystem_Impl() {
 }
 
 // static
 PP_Resource PPB_FileSystem_Impl::Create(PluginInstance* instance,
                                         PP_FileSystemType type) {
   if (type != PP_FILESYSTEMTYPE_EXTERNAL &&
       type != PP_FILESYSTEMTYPE_LOCALPERSISTENT &&
       type != PP_FILESYSTEMTYPE_LOCALTEMPORARY)
     return 0;
-
-  PPB_FileSystem_Impl* file_system = new PPB_FileSystem_Impl(instance, type);
-  return file_system->GetReference();
+  return (new PPB_FileSystem_Impl(instance, type))->GetReference();
 }
 
 PPB_FileSystem_API* PPB_FileSystem_Impl::AsPPB_FileSystem_API() {
   return this;
 }
 
 int32_t PPB_FileSystem_Impl::Open(int64_t expected_size,
                                   PP_CompletionCallback callback) {
   // Should not allow multiple opens.
   if (called_open_)
     return PP_ERROR_INPROGRESS;
   called_open_ = true;
 
   if (type_ != PP_FILESYSTEMTYPE_LOCALPERSISTENT &&
       type_ != PP_FILESYSTEMTYPE_LOCALTEMPORARY)
     return PP_ERROR_FAILED;
 
   fileapi::FileSystemType file_system_type =
       (type_ == PP_FILESYSTEMTYPE_LOCALTEMPORARY ?
        fileapi::kFileSystemTypeTemporary :
        fileapi::kFileSystemTypePersistent);
   if (!instance()->delegate()->OpenFileSystem(
           instance()->container()->element().document().url(),
           file_system_type, expected_size,
           new FileCallbacks(instance()->module()->AsWeakPtr(),
-                            GetReferenceNoAddRef(),
-                            callback, NULL,
+                            pp_resource(), callback, NULL,
                             scoped_refptr<PPB_FileSystem_Impl>(this), NULL)))
     return PP_ERROR_FAILED;
   return PP_OK_COMPLETIONPENDING;
 }
 
 PP_FileSystemType PPB_FileSystem_Impl::GetType() {
   return type_;
 }
 
 }  // namespace ppapi
 }  // namespace webkit