tools/metrics/histograms/histograms.xml

Index: tools/metrics/histograms/histograms.xml
diff --git a/tools/metrics/histograms/histograms.xml b/tools/metrics/histograms/histograms.xml
index 815452c21c071011f526ce3ef9836cb77f393fdb..700c16dbdf7fc28db3ee9532c0059f5c3525e36a 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -18366,7 +18366,6 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="InterProcessTimeTicks.BrowserAhead" units="ms">
-  <owner>ppi@chromium.org</owner>

[Alexei Svitkine (slow), 2016/04/26 14:47:54]

Histograms shouldn't be left unowned? Can you find a replacement owner for the
ones you were the sole owner of? e.g. someone you worked with on these.

Otherwise, how about also removing their logging in the same CL? Thanks!

   <summary>
     Estimated additive skew between processes, recorded if the browser process
     is ahead (higher TimeTicks value) than the renderer process.
@@ -18374,7 +18373,6 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="InterProcessTimeTicks.BrowserBehind" units="ms">
-  <owner>ppi@chromium.org</owner>
   <summary>
     Estimated additive skew between processes, recorded if the browser process
     is behind (lower TimeTicks value) than the renderer process.
@@ -18382,7 +18380,6 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="InterProcessTimeTicks.IsSkewAdditive" enum="Boolean">
-  <owner>ppi@chromium.org</owner>
   <summary>
     True iff the conversion from the browser process TimeTicks to renderer
     process TimeTicks is done by adding a constant, without scaling.
@@ -22567,7 +22564,6 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <owner>hajimehoshi@chromium.org</owner>
   <owner>kenjibaheux@google.com</owner>
   <owner>kouhei@chromium.org</owner>
-  <owner>ppi@chromium.org</owner>
   <summary>
     Value of getMemoryClass() recorded once upon startup. This is an integer,
     device-specific constant correlated with the amount of memory available on
@@ -22579,7 +22575,6 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <owner>hajimehoshi@chromium.org</owner>
   <owner>kenjibaheux@google.com</owner>
   <owner>kouhei@chromium.org</owner>
-  <owner>ppi@chromium.org</owner>
   <summary>
     Reasons behind evictions of individual tabs, recorded upon each tab
     eviction.
@@ -22590,7 +22585,6 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <owner>hajimehoshi@chromium.org</owner>
   <owner>kenjibaheux@google.com</owner>
   <owner>kouhei@chromium.org</owner>
-  <owner>ppi@chromium.org</owner>
   <summary>
     Number of loaded (memory-resident) tabs when LowMemory notification is
     delivered.
@@ -22601,7 +22595,6 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <owner>hajimehoshi@chromium.org</owner>
   <owner>kenjibaheux@google.com</owner>
   <owner>kouhei@chromium.org</owner>
-  <owner>ppi@chromium.org</owner>
   <summary>
     Time between two consecutive LowMemory notification in one foreground
     session.
@@ -22622,7 +22615,6 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <owner>hajimehoshi@chromium.org</owner>
   <owner>kenjibaheux@google.com</owner>
   <owner>kouhei@chromium.org</owner>
-  <owner>ppi@chromium.org</owner>
   <summary>
     Memory notifications delivered through system callbacks to Chrome while in
     the background.
@@ -22634,7 +22626,6 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <owner>hajimehoshi@chromium.org</owner>
   <owner>kenjibaheux@google.com</owner>
   <owner>kouhei@chromium.org</owner>
-  <owner>ppi@chromium.org</owner>
   <summary>
     Memory notifications delivered through system callbacks to Chrome while in
     the foreground - we count LowMemory notification vs particular levels of
@@ -23053,7 +23044,6 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="MPArch.ChildProcessLaunchFirst">
-  <owner>ppi@chromium.org</owner>
   <summary>
     The time it takes to spawn the first child subprocess (including sandbox
     init).
@@ -23061,7 +23051,6 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="MPArch.ChildProcessLaunchSubsequent">
-  <owner>ppi@chromium.org</owner>
   <summary>
     The time it takes to spawn child sub processes not counting the first one.
   </summary>
@@ -23097,7 +23086,6 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="MPArch.RPHCountPerLoad">
-  <owner>ppi@chromium.org</owner>
   <summary>
     The number of RenderProcessHosts (i.e. renderer processes) present when each
     load completes. This is basically the average number of sub-processes over
@@ -42667,7 +42655,6 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="RendererSyncIPC.ElapsedTime" units="ms">
-  <owner>ppi@chromium.org</owner>
   <summary>
     Roundtrip times for synchronous IPC calls from the renderer to browser.
   </summary>
@@ -53873,7 +53860,6 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="Tab.BackgroundLoadStatus" enum="TabBackgroundLoadStatus">
-  <owner>ppi@chromium.org</owner>
   <summary>
     Mobile-specific metric: when a tab that was opened in background (via
     &quot;Open link in new tab&quot;) is switched to, we record whether the
@@ -54075,7 +54061,6 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 
 <histogram name="Tab.StatusWhenDisplayed" enum="TabStatus">
   <owner>lliabraa@chromium.org</owner>
-  <owner>ppi@chromium.org</owner>
   <summary>
     The status of a tab collected each time the tab is displayed on Android,
     including user switching to the tab and displays of newly created tabs, such
@@ -54085,7 +54070,6 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 
 <histogram name="Tab.StatusWhenSwitchedBackToForeground" enum="TabStatus">
   <owner>lliabraa@chromium.org</owner>
-  <owner>ppi@chromium.org</owner>
   <summary>
     The status of a tab collected each time the user switches to it on mobile.
     That does not include tabs being created at the time the user switches to
@@ -54097,7 +54081,6 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
     enum="TabStatus">
   <owner>lliabraa@chromium.org</owner>
   <owner>marq@chromium.org</owner>
-  <owner>ppi@chromium.org</owner>
   <summary>
     The status of a tab collected each time the user switches to it on mobile
     with the data reduction proxy enabled. This is populated identically, and in
@@ -54265,7 +54248,6 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 
 <histogram name="Tabs.CountAtStartup" units="tabs">
   <owner>lliabraa@chromium.org</owner>
-  <owner>ppi@chromium.org</owner>
   <summary>The number of tabs open at cold launch.</summary>
 </histogram>
 
@@ -54571,7 +54553,6 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 <histogram name="Tabs.SpeculativeRestoreApplicability"
     enum="SpeculativeRestoreApplicability">
   <owner>lliabraa@chromium.org</owner>
-  <owner>ppi@chromium.org</owner>
   <summary>
     Applicability of speculative tab restore, recorded every time a tab is
     switched. This allows to estimate the fraction of tab restores experienced
@@ -54584,7 +54565,6 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 <histogram name="Tabs.SpeculativeRestorePredictionAccuracy.SideSwipe"
     enum="SpeculativeRestorePredictionAccuracy">
   <owner>lliabraa@chromium.org</owner>
-  <owner>ppi@chromium.org</owner>
   <summary>
     Accuracy of the tab switch predictions made when the user begins the side
     swipe gesture.
@@ -54594,7 +54574,6 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 <histogram name="Tabs.SpeculativeRestorePredictionAccuracy.TabSwitcher"
     enum="SpeculativeRestorePredictionAccuracy">
   <owner>lliabraa@chromium.org</owner>
-  <owner>ppi@chromium.org</owner>
   <summary>
     Accuracy of the tab switch predictions made when the user enters the tab
     switcher.
@@ -54604,7 +54583,6 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 <histogram name="Tabs.SpeculativeRestoreTargetStatus"
     enum="SpeculativeRestoreTabStatus">
   <owner>lliabraa@chromium.org</owner>
-  <owner>ppi@chromium.org</owner>
   <summary>
     Status of a tab recorded when the tab is targeted with speculative restore.
   </summary>
@@ -54612,7 +54590,6 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 
 <histogram name="Tabs.SpeculativeRestoreTimeAhead.SideSwipe" units="ms">
   <owner>lliabraa@chromium.org</owner>
-  <owner>ppi@chromium.org</owner>
   <summary>
     Time between starting the speculative load and actual tab switch for correct
     speculative load predictions made when the user begins the side swipe
@@ -54622,7 +54599,6 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 
 <histogram name="Tabs.SpeculativeRestoreTimeAhead.TabSwitcher" units="ms">
   <owner>lliabraa@chromium.org</owner>
-  <owner>ppi@chromium.org</owner>
   <summary>
     Time between starting the speculative load and actual tab switch for correct
     speculative load predictions made when the user enters the tab switcher.
@@ -89896,7 +89872,6 @@ To add a new entry, add it with any value and run test to compute valid value.
 </histogram_suffixes>
 
 <histogram_suffixes name="InterProcessTimeTicksConversionType">
-  <owner>ppi@chromium.org</owner>
   <suffix name="BrowserToRenderer"/>
   <suffix name="RendererToBrowser"/>
   <affected-histogram name="InterProcessTimeTicks.BrowserAhead"/>