glCoverageMaskNV 1405 ppapi/lib/gl/include/GLES2/gl2ext.h GL_APICALL void GL_APIENTRY glCoverageMaskNV (GLboolean mask);
glCoverageMaskNV 1229 third_party/khronos/GLES2/gl2ext.h GL_APICALL void GL_APIENTRY glCoverageMaskNV (GLboolean mask);