| Index: ui/gl/gl_surface_glx.h
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| diff --git a/ui/gl/gl_surface_glx.h b/ui/gl/gl_surface_glx.h
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| index 8e7bd1c0c784ff4a75ce61720f97998f5044c309..719e5c10d68ad20850fa4b63c414cd94232fc8a6 100644
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| --- a/ui/gl/gl_surface_glx.h
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| +++ b/ui/gl/gl_surface_glx.h
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| @@ -65,6 +65,11 @@ class GL_EXPORT NativeViewGLSurfaceGLX : public GLSurfaceGLX {
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|    virtual bool PostSubBuffer(int x, int y, int width, int height) OVERRIDE;
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|    virtual VSyncProvider* GetVSyncProvider() OVERRIDE;
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|  
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| +#if defined(TOOLKIT_GTK)
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| +  static void AcceleratedCompositingStateChange(
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| +      int32 surface_id, bool compositing_active);
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| +#endif
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| +
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|   protected:
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|    NativeViewGLSurfaceGLX();
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|    virtual ~NativeViewGLSurfaceGLX();
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| 
 |