MEDIA_GALLERIES_NUM_USAGES   12 chrome/browser/media_galleries/media_galleries_histograms.cc   DCHECK_LT(usage, MEDIA_GALLERIES_NUM_USAGES);
MEDIA_GALLERIES_NUM_USAGES   14 chrome/browser/media_galleries/media_galleries_histograms.cc                             MEDIA_GALLERIES_NUM_USAGES);