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Copyright 2021 The Chromium Authors
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<!--
This file is used to generate a comprehensive list of History histograms
along with a detailed description for each histogram.
For best practices on writing histogram descriptions, see
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Please follow the instructions in the OWNERS file in this directory to find a
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<histogram-configuration>
<histograms>
<histogram name="Discover.Overall.AppLaunched" enum="LaunchSource"
expires_after="2025-02-16">
<owner>[email protected]</owner>
<owner>[email protected]</owner>
<summary>
Records where the Help app was launched from. This is similar to the
"Apps.DefaultAppLaunch{DefaultAppLaunchSource}" histogram, however
it is specific to the Help app and the tokens are enums instead.
</summary>
</histogram>
<histogram name="Discover.SearchConcept.ReadStatus"
enum="HelpAppSearchConceptReadStatus" expires_after="2025-03-24">
<owner>[email protected]</owner>
<owner>[email protected]</owner>
<owner>[email protected]</owner>
<summary>
Various status codes on reading persistence file from disk, in the search
handler used by the ChromeOS launcher. Emitted once when a read happens to
the persistence file, and this happens once per login. Some number of file
not exist values is expected, because the persistence file does not exist
before it is written for the first time.
</summary>
</histogram>
<histogram name="Discover.SearchConcept.WriteStatus"
enum="HelpAppSearchConceptWriteStatus" expires_after="2025-03-24">
<owner>[email protected]</owner>
<owner>[email protected]</owner>
<owner>[email protected]</owner>
<summary>
Various status codes on writing persistence file back to disk, in the search
handler used by the ChromeOS launcher. Emitted once when a write happens to
the persistence file, and this happens once per new web contents arrives,
which is expected to be approx. once per login.
</summary>
</histogram>
<histogram name="Discover.SearchHandler.SearchAvailableTime" units="ms"
expires_after="2025-01-05">
<owner>[email protected]</owner>
<owner>[email protected]</owner>
<owner>[email protected]</owner>
<summary>
The latency of the help search availability after the help app search
handler constructed. Recorded each time a help app search handler is
constructed.
</summary>
</histogram>
<histogram name="Discover.SearchHandler.SearchResultStatus"
enum="HelpAppSearchHandlerSearchResultStatus" expires_after="2025-03-24">
<owner>[email protected]</owner>
<owner>[email protected]</owner>
<owner>[email protected]</owner>
<owner>[email protected]</owner>
<summary>
The end result of a search using the help app search handler. Logged once
per time a search finishes. Not logged if the search is canceled by a new
search starting. Use this to calculate the proportion of searches where the
search handler is ready vs not ready. "Ready" means the update
finished and the search handler is ready to handle searches.
</summary>
</histogram>
</histograms>
</histogram-configuration>
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