Modified the flash cipboard interface to add html clipboard support.

ppapi/proxy/ppapi_messages.h

 // 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.
 
 // Multiply-included message header, no traditional include guard.
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/file_path.h"
@@ skipping 689 matching lines @@
                            int /* format */,
                            bool /* result */)
 IPC_SYNC_MESSAGE_ROUTED2_1(PpapiHostMsg_PPBFlashClipboard_ReadPlainText,
                            PP_Instance /* instance */,
                            int /* clipboard_type */,
                            ppapi::proxy::SerializedVar /* result */)
 IPC_MESSAGE_ROUTED3(PpapiHostMsg_PPBFlashClipboard_WritePlainText,
                     PP_Instance /* instance */,
                     int /* clipboard_type */,
                     ppapi::proxy::SerializedVar /* text */)
+IPC_SYNC_MESSAGE_ROUTED3_1(PpapiHostMsg_PPBFlashClipboard_ReadData,
+                           PP_Instance /* instance */,
+                           int /* clipboard_type */,
+                           int /* format */,
+                           ppapi::proxy::SerializedVar /* result */)
+IPC_MESSAGE_ROUTED4(PpapiHostMsg_PPBFlashClipboard_WriteData,
+                    PP_Instance /* instance */,
+                    int /* clipboard_type */,
+                    std::vector<ppapi::proxy::SerializedVar> /* formats */,
+                    std::vector<ppapi::proxy::SerializedVar> /* data */)
 
 // PPB_Flash_File_FileRef.
 IPC_SYNC_MESSAGE_ROUTED2_2(PpapiHostMsg_PPBFlashFile_FileRef_OpenFile,
                            ppapi::HostResource /* file_ref */,
                            int32_t /* mode */,
                            IPC::PlatformFileForTransit /* file_handle */,
                            int32_t /* result */)
 IPC_SYNC_MESSAGE_ROUTED1_2(PpapiHostMsg_PPBFlashFile_FileRef_QueryFile,
                            ppapi::HostResource /* file_ref */,
                            PP_FileInfo /* info */,
@@ skipping 417 matching lines @@
                     std::vector<PP_PictureBuffer_Dev> /* picture buffers */)
 IPC_MESSAGE_ROUTED2(PpapiHostMsg_PPBVideoDecoder_ReusePictureBuffer,
                     ppapi::HostResource /* video_decoder */,
                     int32_t /* picture buffer id */)
 IPC_MESSAGE_ROUTED1(PpapiHostMsg_PPBVideoDecoder_Flush,
                     ppapi::HostResource /* video_decoder */)
 IPC_MESSAGE_ROUTED1(PpapiHostMsg_PPBVideoDecoder_Reset,
                     ppapi::HostResource /* video_decoder */)
 IPC_SYNC_MESSAGE_ROUTED1_0(PpapiHostMsg_PPBVideoDecoder_Destroy,
                            ppapi::HostResource /* video_decoder */)