dispatchContextLostEvent  163 Source/core/html/canvas/CanvasRenderingContext2D.cpp void CanvasRenderingContext2D::dispatchContextLostEvent(Timer<CanvasRenderingContext2D>*)
dispatchContextLostEvent 5340 Source/core/html/canvas/WebGLRenderingContextBase.cpp void WebGLRenderingContextBase::dispatchContextLostEvent(Timer<WebGLRenderingContextBase>*)