Remove webkit::ppapi::Resource.

ppapi/shared_impl/scoped_pp_resource.h

+// 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.
+
+#ifndef PPAPI_SHARED_IMPL_SCOPED_RESOURCE_H_
+#define PPAPI_SHARED_IMPL_SCOPED_RESOURCE_H_
+
+#include "ppapi/c/pp_resource.h"
+
+namespace ppapi {
+
+class Resource;
+
+// This is a version of scoped_refptr but for PP_Resources.
+class ScopedPPResource {
+ public:
+  ScopedPPResource();
+
+  // Takes one reference to the given resource.
+  explicit ScopedPPResource(PP_Resource resource);
+
+  // Helper to get the PP_Resource out of the given object and take a reference
+  // to it.
+  explicit ScopedPPResource(Resource* resource);
+
+  // Implicit copy constructor allowed.
+  ScopedPPResource(const ScopedPPResource& other);
+
+  ~ScopedPPResource();
+
+  ScopedPPResource& operator=(PP_Resource resource);
+  ScopedPPResource& operator=(const ScopedPPResource& resource);
+
+  // Returns the PP_Resource without affecting the refcounting.
+  PP_Resource get() const { return id_; }
+  operator PP_Resource() const { return id_; }
+
+  // Returns the PP_Resource, passing the reference to the caller. This class
+  // will no longer hold the resource.
+  PP_Resource Release();
+
+ private:
+  // Helpers to addref or release the id_ if it's non-NULL. The id_ value will
+  // be unchanged.
+  void CallAddRef();
+  void CallRelease();
+
+  PP_Resource id_;
+};
+
+}  // namespace ppapi
+
+#endif  // PPAPI_SHARED_IMPL_SCOPED_RESOURCE_H_