Modified the flash cipboard interface to add html clipboard support.

ppapi/thunk/ppb_flash_clipboard_api.h

Index: ppapi/thunk/ppb_flash_clipboard_api.h
diff --git a/ppapi/thunk/ppb_flash_clipboard_api.h b/ppapi/thunk/ppb_flash_clipboard_api.h
index c91e6a1decf296526f9a5365f98472174d78f539..a7c243179ff4fc3a2d616febd4e48975d2ff2ad9 100644
--- a/ppapi/thunk/ppb_flash_clipboard_api.h
+++ b/ppapi/thunk/ppb_flash_clipboard_api.h
@@ -23,6 +23,14 @@ class PPB_Flash_Clipboard_FunctionAPI {
   virtual int32_t WritePlainText(PP_Instance instance,
                                  PP_Flash_Clipboard_Type clipboard_type,
                                  const PP_Var& text) = 0;
+  virtual PP_Var ReadData(PP_Instance instance,
+                          PP_Flash_Clipboard_Type clipboard_type,
+                          PP_Flash_Clipboard_Format format) = 0;
+  virtual int32_t WriteData(PP_Instance instance,
+                            PP_Flash_Clipboard_Type clipboard_type,
+                            uint32_t data_item_count,
+                            const struct
+                            PP_Flash_Clipboard_Data_Item data_items[]) = 0;
 
   static const ApiID kApiID = API_ID_PPB_FLASH_CLIPBOARD;
 };