Fix #4731 (3), round "PixelDimensions"'s display values to integer (#4914)
Fix #4731 (3), round "PixelDimensions"'s display values to integer (#4914)


mozilla-services/pageshot,mozilla-services/pageshot,mozilla-services/screenshots,mozilla-services/screenshots,mozilla-services/pageshot,mozilla-services/pageshot,mozilla-services/screenshots,mozilla-services/screenshots