paintRenderingResultsToImageData 864 Source/core/html/canvas/WebGLRenderingContextBase.cpp PassRefPtrWillBeRawPtr<ImageData> WebGLRenderingContextBase::paintRenderingResultsToImageData() paintRenderingResultsToImageData 839 Source/platform/graphics/gpu/DrawingBuffer.cpp PassRefPtr<Uint8ClampedArray> DrawingBuffer::paintRenderingResultsToImageData(int& width, int& height)