Merge 92908 - Readback composited webgl results for printing

Source/WebCore/platform/graphics/chromium/WebGLLayerChromium.h

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 34 matching lines @@
 // A Layer containing a WebGL canvas
 class WebGLLayerChromium : public CanvasLayerChromium {
 public:
     static PassRefPtr<WebGLLayerChromium> create(GraphicsLayerChromium* owner = 0);
 
     virtual ~WebGLLayerChromium();
 
     virtual bool drawsContent() const;
     virtual void updateCompositorResources();
     void setTextureUpdated();
+    bool paintRenderedResultsToCanvas(ImageBuffer*);
 
     void setContext(const GraphicsContext3D* context);
     GraphicsContext3D* context() { return m_context; }
 
     virtual void setLayerRenderer(LayerRendererChromium*);
 
 protected:
     virtual const char* layerTypeAsString() const { return "WebGLLayer"; }
 
 private:
     explicit WebGLLayerChromium(GraphicsLayerChromium* owner);
     friend class WebGLLayerChromiumRateLimitTask;
 
     void rateLimitContext(Timer<WebGLLayerChromium>*);
 
     // GraphicsContext3D::platformLayer has a side-effect of assigning itself
     // to the layer. Because of that GraphicsContext3D's destructor will reset
     // layer's context to 0.
     GraphicsContext3D* m_context;
     bool m_contextSupportsRateLimitingExtension;
     Timer<WebGLLayerChromium> m_rateLimitingTimer;
     bool m_textureUpdated;
 };
 
 }
 #endif // USE(ACCELERATED_COMPOSITING)
 
 #endif