GL_DRAW_BUFFER6_NV  512 ppapi/lib/gl/include/GLES2/gl2ext.h #define GL_DRAW_BUFFER6_NV                                      0x882B
GL_DRAW_BUFFER6_NV 1248 third_party/khronos/GLES2/gl2ext.h #define GL_DRAW_BUFFER6_NV                0x882B