The NewTabPage.NumberOf*Tiles/Fallbacks histograms have been broken for a while, and aren't all that important to begin with. Remove them.
Also, NewTabPage.SuggestionsType
I'll take this.
The following revision refers to this bug: https://chromium.googlesource.com/chromium/src.git/+/9c7f7e1c7c7f87b2b9965cc38561ababf3812ed3 commit 9c7f7e1c7c7f87b2b9965cc38561ababf3812ed3 Author: treib <treib@chromium.org> Date: Mon Jul 11 13:41:50 2016 Remove a bunch of broken/unused/non-useful NTP UMA histograms BUG= 625154 CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:closure_compilation Review-Url: https://codereview.chromium.org/2124953004 Cr-Commit-Position: refs/heads/master@{#404649} [modify] https://crrev.com/9c7f7e1c7c7f87b2b9965cc38561ababf3812ed3/chrome/browser/resources/local_ntp/most_visited_single.js [modify] https://crrev.com/9c7f7e1c7c7f87b2b9965cc38561ababf3812ed3/chrome/browser/resources/local_ntp/most_visited_thumbnail.js [modify] https://crrev.com/9c7f7e1c7c7f87b2b9965cc38561ababf3812ed3/chrome/browser/resources/local_ntp/most_visited_util.js [modify] https://crrev.com/9c7f7e1c7c7f87b2b9965cc38561ababf3812ed3/chrome/browser/ui/webui/ntp/ntp_user_data_logger.cc [modify] https://crrev.com/9c7f7e1c7c7f87b2b9965cc38561ababf3812ed3/chrome/browser/ui/webui/ntp/ntp_user_data_logger.h [modify] https://crrev.com/9c7f7e1c7c7f87b2b9965cc38561ababf3812ed3/chrome/browser/ui/webui/ntp/ntp_user_data_logger_unittest.cc [modify] https://crrev.com/9c7f7e1c7c7f87b2b9965cc38561ababf3812ed3/chrome/common/search/ntp_logging_events.h [modify] https://crrev.com/9c7f7e1c7c7f87b2b9965cc38561ababf3812ed3/tools/metrics/histograms/histograms.xml
Comment 1 by treib@chromium.org
, Jul 1 2016