New thunk system for Pepper proxy and implementation

ppapi/proxy/resource_creation_proxy.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_PROXY_RESOURCE_CREATION_PROXY_H_
+#define PPAPI_PROXY_RESOURCE_CREATION_PROXY_H_
+
+#include "base/basictypes.h"
+#include "ipc/ipc_channel.h"
+#include "ppapi/c/pp_bool.h"
+#include "ppapi/c/pp_instance.h"
+#include "ppapi/proxy/serialized_structs.h"
+#include "ppapi/shared_impl/function_group_base.h"
+#include "ppapi/thunk/resource_creation_api.h"
+
+struct PP_Size;
+
+namespace pp {
+namespace proxy {
+
+class HostResource;
+class Dispatcher;
+
+class ResourceCreationProxy : public ::ppapi::shared_impl::FunctionGroupBase,
+                              public ::ppapi::thunk::ResourceCreationAPI,
+                              public ::IPC::Channel::Listener,
+                              public IPC::Message::Sender {
+ public:
+  ResourceCreationProxy(Dispatcher* dispatcher);
+  virtual ~ResourceCreationProxy();
+
+  virtual ::ppapi::thunk::ResourceCreationAPI* AsResourceCreation();
+
+  // ResourceCreationAPI (called in plugin).
+  virtual PP_Resource CreateGraphics2D(PP_Instance pp_instance,
+                                       const PP_Size& size,
+                                       PP_Bool is_always_opaque);
+  virtual PP_Resource CreateImageData(PP_Instance instance,
+                                      PP_ImageDataFormat format,
+                                      const PP_Size& size,
+                                      PP_Bool init_to_zero);
+
+  virtual bool Send(IPC::Message* msg);
+  virtual bool OnMessageReceived(const IPC::Message& msg);
+
+ private:
+  // IPC message handlers (called in browser).
+  void OnMsgCreateGraphics2D(PP_Instance instance,
+                             const PP_Size& size,
+                             PP_Bool is_always_opaque,
+                             HostResource* result);
+  void OnMsgCreateImageData(PP_Instance instance,
+                            int32_t format,
+                            const PP_Size& size,
+                            PP_Bool init_to_zero,
+                            HostResource* result,
+                            std::string* image_data_desc,
+                            ImageHandle* result_image_handle);
+
+  Dispatcher* dispatcher_;
+
+  DISALLOW_COPY_AND_ASSIGN(ResourceCreationProxy);
+};
+
+}  // namespace proxy
+}  // namespace pp
+
+#endif  // PPAPI_PROXY_RESOURCE_CREATION_PROXY_H_