validateHTMLImageElement 3417 Source/core/html/canvas/WebGLRenderingContextBase.cpp if (isContextLost() || !validateHTMLImageElement("texImage2D", image, exceptionState)) validateHTMLImageElement 3660 Source/core/html/canvas/WebGLRenderingContextBase.cpp if (isContextLost() || !validateHTMLImageElement("texSubImage2D", image, exceptionState)) validateHTMLImageElement 823 Source/core/html/canvas/WebGLRenderingContextBase.h bool validateHTMLImageElement(const char* functionName, HTMLImageElement*, ExceptionState&);