Fix ppb_graphics_3d such that the thunk can be generated again

ppapi/shared_impl/ppb_graphics_3d_shared.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_SHARED_IMPL_GRAPHICS_3D_IMPL_H_
 #define PPAPI_SHARED_IMPL_GRAPHICS_3D_IMPL_H_
 
 #include <stdint.h>
 
 #include "base/macros.h"
@@ skipping 22 matching lines @@
       public thunk::PPB_Graphics3D_API {
  public:
   // Resource overrides.
   thunk::PPB_Graphics3D_API* AsPPB_Graphics3D_API() override;
 
   // PPB_Graphics3D_API implementation.
   int32_t GetAttribs(int32_t attrib_list[]) override;
   int32_t SetAttribs(const int32_t attrib_list[]) override;
   int32_t GetError() override;
   int32_t ResizeBuffers(int32_t width, int32_t height) override;
-  int32_t SwapBuffers(scoped_refptr<TrackedCallback> callback,
-                      const gpu::SyncToken& sync_token) override;
+  int32_t SwapBuffers(scoped_refptr<TrackedCallback> callback) override;
+  int32_t SwapBuffersWithSyncToken(scoped_refptr<TrackedCallback> callback,
+                                   const gpu::SyncToken& sync_token) override;
   int32_t GetAttribMaxValue(int32_t attribute, int32_t* value) override;
 
   void* MapTexSubImage2DCHROMIUM(GLenum target,
                                  GLint level,
                                  GLint xoffset,
                                  GLint yoffset,
                                  GLsizei width,
                                  GLsizei height,
                                  GLenum format,
                                  GLenum type,
@@ skipping 28 matching lines @@
 
   // Callback that needs to be executed when swap-buffers is completed.
   scoped_refptr<TrackedCallback> swap_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(PPB_Graphics3D_Shared);
 };
 
 }  // namespace ppapi
 
 #endif  // PPAPI_SHARED_IMPL_GRAPHICS_3D_IMPL_H_