Refactor PPB_Flash_Fullscreen to the new resource model.

ppapi/thunk/ppb_flash_api.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.
 
 #ifndef PPAPI_THUNK_PPB_FLASH_API_H_
 #define PPAPI_THUNK_PPB_FLASH_API_H_
 
 #include "ppapi/c/private/ppb_flash.h"
 #include "ppapi/c/private/ppb_flash_file.h"
 #include "ppapi/thunk/ppapi_thunk_export.h"
@@ skipping 77 matching lines @@
                                       PP_FileHandle* file) = 0;
 
   // FlashFile_FileRef.
   virtual int32_t OpenFileRef(PP_Instance instance,
                               PP_Resource file_ref,
                               int32_t mode,
                               PP_FileHandle* file) = 0;
   virtual int32_t QueryFileRef(PP_Instance instance,
                                PP_Resource file_ref,
                                PP_FileInfo* info) = 0;
-
-  // FlashFullscreen.
-  virtual PP_Bool FlashIsFullscreen(PP_Instance instance) = 0;
-  virtual PP_Bool FlashSetFullscreen(PP_Instance instance,
-                                     PP_Bool fullscreen) = 0;
-  virtual PP_Bool FlashGetScreenSize(PP_Instance instance, PP_Size* size) = 0;
 };
 
 }  // namespace thunk
 }  // namespace ppapi
 
 #endif // PPAPI_THUNK_PPB_FLASH_API_H_