| Index: ppapi/thunk/ppb_graphics_3d_api.h
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| diff --git a/ppapi/thunk/ppb_graphics_3d_api.h b/ppapi/thunk/ppb_graphics_3d_api.h
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| index 1d28ff340ad08a3ba3cd9e8d993623db2aee25cf..231c0acd44bac556dac95b8522057a8c4ef8e0ef 100644
 | 
| --- a/ppapi/thunk/ppb_graphics_3d_api.h
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| +++ b/ppapi/thunk/ppb_graphics_3d_api.h
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| @@ -13,6 +13,10 @@
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|  #include "ppapi/c/ppb_graphics_3d.h"
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|  #include "ppapi/thunk/ppapi_thunk_export.h"
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|  
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| +namespace gpu {
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| +struct SyncToken;
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| +}
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| +
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|  namespace ppapi {
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|  
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|  class TrackedCallback;
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| @@ -28,7 +32,8 @@ class PPAPI_THUNK_EXPORT PPB_Graphics3D_API {
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|    virtual int32_t SetAttribs(const int32_t attrib_list[]) = 0;
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|    virtual int32_t GetError() = 0;
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|    virtual int32_t ResizeBuffers(int32_t width, int32_t height) = 0;
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| -  virtual int32_t SwapBuffers(scoped_refptr<TrackedCallback> callback) = 0;
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| +  virtual int32_t SwapBuffers(scoped_refptr<TrackedCallback> callback,
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| +                              const gpu::SyncToken& sync_token) = 0;
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|    virtual int32_t GetAttribMaxValue(int32_t attribute, int32_t* value) = 0;
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|  
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|    // Graphics3DTrusted API.
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| 
 |