ORIGIN_EXTERNAL_REQUEST   61 chrome/browser/prerender/prerender_histograms.cc     case ORIGIN_EXTERNAL_REQUEST:
ORIGIN_EXTERNAL_REQUEST  132 chrome/browser/prerender/prerender_histograms.cc   } else if (origin == ORIGIN_EXTERNAL_REQUEST) { \
ORIGIN_EXTERNAL_REQUEST  380 chrome/browser/prerender/prerender_manager.cc   return AddPrerender(ORIGIN_EXTERNAL_REQUEST, -1, url, referrer, size,