Add DownloadStatus metric to FaviconHandler

Desktop / Chromium - fhorschig [chromium.org] - 19 April 2017 06:17 EDT

This metric records how often single icon downloads fail with 404 and how often 404'ing icons can be skipped because they were already known.

BUG=672939

Review-Url: https://codereview.chromium.org/2808063002 Cr-Commit-Position: refs/heads/master@{#465545}

be0a607 Add DownloadStatus metric to FaviconHandler
components/favicon/core/favicon_handler.cc | 9 +++++
components/favicon/core/favicon_handler.h | 13 +++++++
.../favicon/core/favicon_handler_unittest.cc | 44 ++++++++++++++++++++++
tools/metrics/histograms/histograms.xml | 19 ++++++++++
4 files changed, 85 insertions(+)

Upstream: git.chromium.org


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