anthonyvd@chromium.org chrome-catan@google.com Whether individual accessibility mode flags are set. Recorded with every UMA report to attempt to slice other metrics based on which a11y flags are set. anthonyvd@chromium.org chrome-catan@google.com Whether any accessibility mode flags are set. Recorded with every UMA report to attempt to slice other metrics based on whether a11y is active. agale@chromium.org joenotcharles@chromium.org chrome-catan@google.com Recorded when a device drops back below the CPU threshold, this histogram represents the total time that the device was above the threshold. agale@chromium.org joenotcharles@chromium.org chrome-catan@google.com Recorded when the CPU threshold is reached, this histogram represents the percent of CPU capacity being used by background tabs. joenotcharles@google.com chrome-catan@google.com The result of opening the Local Site Characteristics database. Recorded at startup when the database gets opened. If the result is not Success, PerformanceManager.SiteDB.DatabaseInitAfterRepair may be logged as well. joenotcharles@google.com chrome-catan@google.com The result of opening the Local Site Characteristics database after deleting it after a failed repair attempt. Recorded at startup when the database gets opened, if the initial open and repair attempts failed. joenotcharles@google.com chrome-catan@google.com The result of opening the Local Site Characteristics database after a repair attempt. Recorded at startup when the database gets opened, if the initial open attempt failed. If the result is not Success, PerformanceManager.SiteDB.DatabaseInitAfterDelete may be logged as well. joenotcharles@google.com chrome-catan@google.com The result of trying to repair the Local Site Characteristics database after a failed open. Recorded at startup when the database gets opened, if the initial open attempt failed. joenotcharles@google.com chrome-catan@google.com The cumulative observation time before the {Feature} feature tracked in the Local Site Characteristics database gets used. Reported the first time a site is observed to use the feature. joenotcharles@google.com chrome-catan@google.com The size of the Local Site Characteristics database on disk. Recorded at startup when the database gets opened, if it already existed from a previous run. joenotcharles@google.com chrome-catan@google.com Boolean indicating if the read operation from the Local Site Characteristics database has completed when we query for the characteristics of a site. Reported every time the database is queried. anthonyvd@chromium.org chrome-catan@google.com Logged everytime a background tab is closed. Records the time in seconds that the tab has spent in the background since it was last active. anthonyvd@chromium.org chrome-catan@google.com Logged everytime a background tab is revisited. Records the time in seconds that the tab has spent in the background since it was last active. anthonyvd@chromium.org chrome-catan@google.com Recorded every UMA upload, this histogram represents the percentage of the interval since the last upload that was spent with Battery Saver enabled. anthonyvd@chromium.org chrome-catan@google.com Logged on each UMA upload to represent which user-controllable Efficiency Mode setting the browser is in during the reported window. If the mode was changed between uploads, MIXED will be reported for that interval. This histogram is used internally to filter other histograms by efficiency mode. anthonyvd@chromium.org chrome-catan@google.com Recorded every UMA upload, this histogram represents the percentage of the interval since the last upload that was spent with Memory Saver enabled.