clearPresentationCopy  119 Source/core/html/HTMLCanvasElement.h     void clearPresentationCopy();
clearPresentationCopy  826 Source/core/html/canvas/WebGLRenderingContextBase.cpp         canvas()->clearPresentationCopy();
clearPresentationCopy  831 Source/core/html/canvas/WebGLRenderingContextBase.cpp         canvas()->clearPresentationCopy();
clearPresentationCopy  840 Source/core/html/canvas/WebGLRenderingContextBase.cpp         canvas()->clearPresentationCopy();