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authorasvitkine@chromium.org <asvitkine@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>2013-06-07 00:08:46 +0000
committerasvitkine@chromium.org <asvitkine@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>2013-06-07 00:08:46 +0000
commit0dd13cb7686e3b5500bc15a3ac876ae65eb9b484 (patch)
tree2ec06ec536340d06ad9c6c4d961b09aa050ccf1e /cc/test/data
parent1a9d138eee60ecc46ce2b96a2b89c32cdfef8094 (diff)
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Improve histogram instrumentation of VariationsService.
These will hopefully help diagnose a problem we're seeing on ChromeOS M28+ where it seems the variations seed is rarely fetched. Adds the following new histograms: Variations.FailedRequestErrorCode Variations.TimeSinceLastFetch Variations.ResourceRequestsAllowed (see histograms.xml changes for descriptions) As well as making the following changes: - Variations.SeedFetchResponseCode is now a sparse histogram. - Variations.SeedEmpty now also logs the False case. - Obsolete Variations.* histograms are now annotated. BUG=247354 Review URL: https://chromiumcodereview.appspot.com/16398004 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@204670 0039d316-1c4b-4281-b951-d872f2087c98
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