Merged GraphicsContext3DPrivate into GraphicsContext3D

Source/core/html/canvas/WebGLRenderingContext.cpp

Index: Source/core/html/canvas/WebGLRenderingContext.cpp
diff --git a/Source/core/html/canvas/WebGLRenderingContext.cpp b/Source/core/html/canvas/WebGLRenderingContext.cpp
index 417e1232739a4501321bda2d06c901971171c3a5..dfabfde89262c16a89cfebedfc0b6f802971c5b7 100644
--- a/Source/core/html/canvas/WebGLRenderingContext.cpp
+++ b/Source/core/html/canvas/WebGLRenderingContext.cpp
@@ -839,8 +839,6 @@ void WebGLRenderingContext::paintRenderingResultsToCanvas()
     // Until the canvas is written to by the application, the clear that
     // happened after it was composited should be ignored by the compositor.
     if (m_context->layerComposited() && !m_attributes.preserveDrawingBuffer) {
-        m_context->paintCompositedResultsToCanvas(canvas()->buffer());
-
         m_drawingBuffer->paintCompositedResultsToCanvas(canvas()->buffer());
 
         canvas()->makePresentationCopy();