GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE  312 gpu/GLES2/gl2extchromium.h #define GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE 0x8D56
GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE 1690 ppapi/lib/gl/include/GLES2/gl2ext.h #define GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE 0x8D56