validateStencilSettings 5167 Source/core/html/canvas/WebGLRenderingContextBase.cpp     if (!validateStencilSettings(functionName))
validateStencilSettings 5198 Source/core/html/canvas/WebGLRenderingContextBase.cpp     if (!validateStencilSettings(functionName))
validateStencilSettings  783 Source/core/html/canvas/WebGLRenderingContextBase.h     bool validateStencilSettings(const char* functionName);