NullDisposition  4701 Source/core/html/canvas/WebGLRenderingContextBase.cpp bool WebGLRenderingContextBase::validateTexFuncData(const char* functionName, GLint level, GLsizei width, GLsizei height, GLenum format, GLenum type, ArrayBufferView* pixels, NullDisposition disposition)
NullDisposition   756 Source/core/html/canvas/WebGLRenderingContextBase.h     bool validateTexFuncData(const char* functionName, GLint level, GLsizei width, GLsizei height, GLenum format, GLenum type, ArrayBufferView* pixels, NullDisposition);