Network histograms audit

This CL:
* Marks some unused histograms as obsolete
* Updates ownership of some histograms
* Updates a few expires_after dates for consistency

BUG=1097831
R=chromium-metrics-reviews@google.com

Change-Id: Ice2d51014bd4211a0a70c0dd893c33c508cd5c02
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2568597Reviewed-by: Steven Holte <holte@chromium.org>
Reviewed-by: Steven Bennetts <stevenjb@chromium.org>
Commit-Queue: Steven Bennetts <stevenjb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#833442}

tools/metrics/histograms/histograms_xml/network/histograms.xml

@@ -22,14 +22,18 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 <histograms>
 
 <histogram name="Network.3G.Gobi.Activation" units="ms" expires_after="M85">
+  <obsolete>
+    Removed 12/2020
+  </obsolete>
   <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
   <summary>The time the Gobi modem takes to complete activation.</summary>
 </histogram>
 
 <histogram name="Network.3G.Gobi.Connect" units="ms" expires_after="2019-12-31">
+  <obsolete>
+    Removed 12/2020
+  </obsolete>
   <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
   <summary>
     The time the Gobi modem takes to connect to the cellular network.
   </summary>
@@ -37,8 +41,10 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 
 <histogram name="Network.3G.Gobi.Disconnect" units="ms"
     expires_after="2019-12-31">
+  <obsolete>
+    Removed 12/2020
+  </obsolete>
   <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
   <summary>
     The time the Gobi modem takes to disconnect from the cellular network.
   </summary>
@@ -46,22 +52,28 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 
 <histogram name="Network.3G.Gobi.FirmwareDownload.Attempts" units="units"
     expires_after="M85">
+  <obsolete>
+    Removed 12/2020
+  </obsolete>
   <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
   <summary>Number of attempts taken to install Gobi firmware.</summary>
 </histogram>
 
 <histogram name="Network.3G.Gobi.FirmwareDownload.Time" units="ms"
     expires_after="M85">
+  <obsolete>
+    Removed 12/2020
+  </obsolete>
   <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
   <summary>The time it takes to install Gobi firmware.</summary>
 </histogram>
 
 <histogram name="Network.3G.Gobi.Registration" units="ms"
     expires_after="2019-12-31">
+  <obsolete>
+    Removed 12/2020
+  </obsolete>
   <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
   <summary>
     The time the Gobi modem takes to register on the cellular network.
   </summary>
@@ -69,8 +81,10 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 
 <histogram name="Network.3G.Gobi.SetPower" enum="Network3GGobiError"
     expires_after="2019-12-31">
+  <obsolete>
+    Removed 12/2020
+  </obsolete>
   <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
   <summary>Errors experienced during Gobi device powerup.</summary>
 </histogram>
 
@@ -117,8 +131,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 <histogram name="Network.Shill.Cellular.3GPPRegistrationDelayedDrop"
     enum="NetworkCellular3GPPRegistrationDelayedDrop"
     expires_after="2021-12-01">
-  <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
+  <owner>ejcaruso@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network diagnostic metric sampling the number of cellular network
@@ -129,8 +142,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 
 <histogram name="Network.Shill.Cellular.AutoConnectTotalTime" units="ms"
     expires_after="2021-12-01">
-  <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
+  <owner>ejcaruso@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network diagnostic metric sampling the total amount of time spent
@@ -141,8 +153,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 
 <histogram name="Network.Shill.Cellular.AutoConnectTries" units="units"
     expires_after="2021-12-01">
-  <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
+  <owner>ejcaruso@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network diagnostic metric sampling the number of auto-connect
@@ -153,8 +164,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 
 <histogram name="Network.Shill.Cellular.DevicePresenceStatus"
     enum="BooleanPresent" expires_after="2021-12-01">
-  <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
+  <owner>ejcaruso@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network metric that tracks the presence of a Cellular device in
@@ -164,8 +174,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 
 <histogram name="Network.Shill.Cellular.Disconnect"
     enum="NetworkDisconnectType" expires_after="2021-12-01">
-  <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
+  <owner>ejcaruso@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network usage metric that tracks whether the cellular network was
@@ -175,8 +184,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 
 <histogram name="Network.Shill.Cellular.Drop" enum="NetworkCellularTechnology"
     expires_after="2021-12-01">
-  <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
+  <owner>ejcaruso@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS cellular network metric that tracks the number of drops based on
@@ -186,8 +194,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 
 <histogram name="Network.Shill.Cellular.ExpiredLeaseLengthSeconds2"
     units="seconds" expires_after="2021-12-01">
-  <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
+  <owner>ejcaruso@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network performance metric that tracks the length of a lease for a
@@ -198,8 +205,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 
 <histogram name="Network.Shill.Cellular.IPv6ConnectivityStatus"
     enum="IPv6ConnectivityStatus" expires_after="2021-12-01">
-  <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
+  <owner>ejcaruso@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network metric that tracks the presence of complete IPv6
@@ -209,8 +215,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 
 <histogram name="Network.Shill.Cellular.NetworkConnectionIPType"
     enum="NetworkConnectionIPType" expires_after="2021-12-01">
-  <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
+  <owner>ejcaruso@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network metric that tracks the types of IP configuration used for
@@ -220,8 +225,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 
 <histogram name="Network.Shill.Cellular.OutOfCreditsReason"
     enum="NetworkCellularOutOfCreditsReason" expires_after="2021-12-01">
-  <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
+  <owner>ejcaruso@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS cellular network metric that tracks the number of out-of-credits
@@ -231,8 +235,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 
 <histogram name="Network.Shill.Cellular.PortalAttempts" units="units"
     expires_after="2021-12-01">
-  <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
+  <owner>ejcaruso@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network diagnostic metric sampling the number of portal detection
@@ -243,8 +246,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 
 <histogram name="Network.Shill.Cellular.PortalAttemptsToOnline" units="units"
     expires_after="2021-12-01">
-  <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
+  <owner>ejcaruso@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network diagnostic metric sampling the total number of portal
@@ -255,8 +257,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 
 <histogram name="Network.Shill.Cellular.PortalResult"
     enum="NetworkPortalResult" expires_after="2021-12-01">
-  <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
+  <owner>ejcaruso@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network diagnostic metric sampling the result of portal detections
@@ -275,8 +276,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 
 <histogram name="Network.Shill.Cellular.SignalStrengthBeforeDrop" units="units"
     expires_after="2021-12-01">
-  <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
+  <owner>ejcaruso@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network metric sampling the signal strength (0-100) of the
@@ -286,8 +286,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 
 <histogram name="Network.Shill.Cellular.TimeOnline" units="seconds"
     expires_after="2021-12-01">
-  <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
+  <owner>ejcaruso@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network metric sampling the time spent using cellular to transport
@@ -298,8 +297,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 
 <histogram name="Network.Shill.Cellular.TimeToConfig" units="ms"
     expires_after="2021-12-01">
-  <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
+  <owner>ejcaruso@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network performance metric sampling the time to join a cellular
@@ -309,8 +307,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 
 <histogram name="Network.Shill.Cellular.TimeToConnect" units="ms"
     expires_after="2021-12-01">
-  <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
+  <owner>ejcaruso@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network performance metric sampling the time to connect a cellular
@@ -320,8 +317,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 
 <histogram name="Network.Shill.Cellular.TimeToDisable" units="ms"
     expires_after="2021-12-01">
-  <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
+  <owner>ejcaruso@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network performance metric sampling the time to disable a cellular
@@ -331,8 +327,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 
 <histogram name="Network.Shill.Cellular.TimeToEnable" units="ms"
     expires_after="2021-12-01">
-  <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
+  <owner>ejcaruso@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network performance metric sampling the time to enable a cellular
@@ -342,8 +337,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 
 <histogram name="Network.Shill.Cellular.TimeToInitialize" units="ms"
     expires_after="2021-12-01">
-  <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
+  <owner>ejcaruso@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network performance metric sampling the time to initialize a
@@ -353,8 +347,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 
 <histogram name="Network.Shill.Cellular.TimeToOnline" units="ms"
     expires_after="2021-12-01">
-  <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
+  <owner>ejcaruso@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network performance metric sampling the time to determine that a
@@ -364,8 +357,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 
 <histogram name="Network.Shill.Cellular.TimeToPortal" units="ms"
     expires_after="2021-12-01">
-  <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
+  <owner>ejcaruso@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network performance metric sampling the time to determine that a
@@ -387,8 +379,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 
 <histogram name="Network.Shill.Cellular.TimeToScan" units="ms"
     expires_after="2021-12-01">
-  <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
+  <owner>ejcaruso@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network performance metric sampling the time to scan a cellular
@@ -397,9 +388,9 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 </histogram>
 
 <histogram name="Network.Shill.ConnectionDiagnosticsIssue"
-    enum="ConnectionDiagnosticsIssue" expires_after="M85">
+    enum="ConnectionDiagnosticsIssue" expires_after="2021-12-01">
   <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
+  <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network metric that tracks the connectivity issue diagnosed by the
     ConnectionDiagnostics class in Shill. This metric is logged each time a
@@ -409,9 +400,9 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 </histogram>
 
 <histogram name="Network.Shill.CorruptedProfile" enum="NetworkCorruptedProfile"
-    expires_after="M78">
+    expires_after="2021-12-01">
   <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
+  <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS cellular network metric that tracks the number of corrupted
     profiles encountered by Shill.
@@ -501,7 +492,6 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
     enum="ShillSuspendTerminationDarkResumeActionResult"
     expires_after="2021-12-01">
   <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network diagnostic metric sampling the number of dark resume
@@ -512,7 +502,6 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 <histogram name="Network.Shill.DarkResumeActionsTimeTaken" units="ms"
     expires_after="2021-12-01">
   <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network diagnostic metric sampling the time in milliseconds it
@@ -523,7 +512,6 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 <histogram name="Network.Shill.DarkResumeScanNumRetries" units="units"
     expires_after="2021-12-01">
   <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network metric sampling the number of times a dark resume scan is
@@ -534,7 +522,6 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 <histogram name="Network.Shill.DarkResumeScanRetryResult"
     enum="DarkResumeScanRetryResult" expires_after="2021-12-01">
   <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network metric that tracks whether dark resume scan retries led to
@@ -547,7 +534,6 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 <histogram name="Network.Shill.DeviceConnectionStatus" enum="ConnectionStatus"
     expires_after="2021-12-01">
   <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network performance metric that tracks the connection status of
@@ -558,7 +544,6 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 <histogram name="Network.Shill.DeviceRemovedEvent" enum="DeviceTechnologyType"
     expires_after="2021-12-01">
   <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network metric that tracks the network device removed events for
@@ -569,7 +554,6 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 <histogram name="Network.Shill.DHCPClientMTUValue" units="bytes"
     expires_after="2021-12-01">
   <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network diagnostic metric sampling the MTU value proposed by the
@@ -581,7 +565,6 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 <histogram name="Network.Shill.DHCPClientStatus" enum="NetworkDhcpClientStatus"
     expires_after="2021-12-01">
   <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network diagnostic metric sampling the current state of the DHCP
@@ -592,7 +575,6 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 <histogram name="Network.Shill.DHCPOptionFailureDetected"
     enum="NetworkTechnology" expires_after="2021-12-01">
   <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network metric that tracks the number of DHCP option failures
@@ -605,7 +587,6 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 <histogram name="Network.Shill.Ethernet.DevicePresenceStatus"
     enum="BooleanPresent" expires_after="2021-12-01">
   <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network metric that tracks the presence of an Ethernet device in
@@ -616,7 +597,6 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 <histogram name="Network.Shill.Ethernet.Disconnect"
     enum="NetworkDisconnectType" expires_after="2021-12-01">
   <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network usage metric that tracks whether the Ethernet network was
@@ -627,7 +607,6 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 <histogram name="Network.Shill.Ethernet.ExpiredLeaseLengthSeconds2"
     units="seconds" expires_after="2021-12-01">
   <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network performance metric that tracks the length of a lease for
@@ -639,7 +618,6 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 <histogram name="Network.Shill.Ethernet.LinkMonitorBroadcastErrorsAtFailure"
     units="units" expires_after="2021-12-01">
   <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network performance metric that tracks the number of LinkMonitor
@@ -651,7 +629,6 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 <histogram name="Network.Shill.Ethernet.LinkMonitorFailure"
     enum="LinkMonitorFailureType" expires_after="2021-12-01">
   <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS metric that signals the type of failure the LinkMonitor
@@ -662,7 +639,6 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 <histogram name="Network.Shill.Ethernet.LinkMonitorResponseTimeSample"
     units="ms" expires_after="2021-12-01">
   <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network performance metric that tracks the number of milliseconds
@@ -673,7 +649,6 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 <histogram name="Network.Shill.Ethernet.LinkMonitorSecondsToFailure"
     units="seconds" expires_after="2021-12-01">
   <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network performance metric that tracks the number of seconds from
@@ -684,7 +659,6 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 <histogram name="Network.Shill.Ethernet.LinkMonitorUnicastErrorsAtFailure"
     units="units" expires_after="2021-12-01">
   <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network performance metric that tracks the number of LinkMonitor
@@ -696,7 +670,6 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 <histogram name="Network.Shill.Ethernet.PortalAttempts" units="units"
     expires_after="2021-12-01">
   <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network diagnostic metric sampling the number of portal detection
@@ -708,7 +681,6 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 <histogram name="Network.Shill.Ethernet.PortalAttemptsToOnline" units="units"
     expires_after="2021-12-01">
   <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network diagnostic metric sampling the total number of portal
@@ -720,7 +692,6 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 <histogram name="Network.Shill.Ethernet.PortalResult"
     enum="NetworkPortalResult" expires_after="2021-12-01">
   <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network diagnostic metric sampling the result of portal detections
@@ -740,7 +711,6 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 <histogram name="Network.Shill.Ethernet.TimeOnline" units="seconds"
     expires_after="2021-12-01">
   <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network metric sampling the time spent using Ethernet to transport
@@ -752,7 +722,6 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 <histogram name="Network.Shill.Ethernet.TimeToConfig" units="ms"
     expires_after="2021-12-01">
   <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network performance metric sampling the time to join a wired
@@ -764,7 +733,6 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 <histogram name="Network.Shill.Ethernet.TimeToInitialize" units="ms"
     expires_after="2021-12-01">
   <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network performance metric sampling the time to initialize an
@@ -775,7 +743,6 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 <histogram name="Network.Shill.Ethernet.TimeToOnline" units="ms"
     expires_after="2021-12-01">
   <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network performance metric sampling the time to determine that an
@@ -786,7 +753,6 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 <histogram name="Network.Shill.Ethernet.TimeToPortal" units="ms"
     expires_after="2021-12-01">
   <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network performance metric sampling the time to determine that an
@@ -896,7 +862,6 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 <histogram name="Network.Shill.ServiceErrors" enum="NetworkServiceError"
     expires_after="2021-12-01">
   <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS connection manager service errors across all technologies.
@@ -906,7 +871,6 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 <histogram name="Network.Shill.ServicesOnSameNetwork" units="units"
     expires_after="2021-12-01">
   <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network metric sampling the number of services that are connected
@@ -918,7 +882,6 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
     enum="ShillSuspendTerminationDarkResumeActionResult"
     expires_after="2021-12-01">
   <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network diagnostic metric sampling the number of suspend actions
@@ -940,7 +903,6 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
     enum="ShillSuspendTerminationDarkResumeActionResult"
     expires_after="2021-12-01">
   <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network diagnostic metric sampling the number of termination
@@ -952,7 +914,6 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 <histogram name="Network.Shill.TerminationActionsTimeTaken" units="ms"
     expires_after="2021-12-01">
   <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network diagnostic metric sampling the time in milliseconds it
@@ -963,7 +924,6 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 <histogram name="Network.Shill.TimeToDrop" units="seconds"
     expires_after="2021-12-01">
   <owner>stevenjb@chromium.org</owner>
-  <owner>benchan@chromium.org</owner>
   <owner>cros-network-metrics@google.com</owner>
   <summary>
     Chrome OS network stability metric sampling the time in seconds between the