Convert the flash clipboard API to thunk system.

ppapi/thunk/ppb_flash_clipboard_api.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_THUNK_PPB_FLASH_CLIPBOARD_API_H_
+#define PPAPI_THUNK_PPB_FLASH_CLIPBOARD_API_H_
+
+#include "ppapi/c/private/ppb_flash_clipboard.h"
+#include "ppapi/shared_impl/api_id.h"
+
+namespace ppapi {
+namespace thunk {
+
+class PPB_Flash_Clipboard_FunctionAPI {
+ public:
+  virtual ~PPB_Flash_Clipboard_FunctionAPI() {}
+
+  virtual PP_Bool IsFormatAvailable(PP_Instance instance,
+                                    PP_Flash_Clipboard_Type clipboard_type,
+                                    PP_Flash_Clipboard_Format format) = 0;
+  virtual PP_Var ReadPlainText(PP_Instance instance,
+                               PP_Flash_Clipboard_Type clipboard_type) = 0;
+  virtual int32_t WritePlainText(PP_Instance instance,
+                                 PP_Flash_Clipboard_Type clipboard_type,
+                                 const PP_Var& text) = 0;
+
+  static const ApiID kApiID = API_ID_PPB_FLASH_CLIPBOARD;
+};
+
+}  // namespace thunk
+}  // namespace ppapi
+
+#endif  // PPAPI_THUNK_PPB_FLASH_CLIPBOARD_API_H_