Delay expiry of histograms causing alerts.

Updates the expires_after attribute for 20 histograms that have
been used to generate alerts in the past 90 days and do not already have
a date later than or within 60 days of 2021-01-25.

TBR=chromium-metrics-reviews@google.com

Change-Id: I9c5e0d4b1a9ff375429baa6a4f976c67f3e5bea6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2503229Reviewed-by: Chrome Metrics Logs <chrome-metrics-team+robot@google.com>
Commit-Queue: Chrome Metrics Logs <chrome-metrics-team+robot@google.com>
Cr-Commit-Position: refs/heads/master@{#821380}

tools/metrics/histograms/histograms_xml/apps/histograms.xml

@@ -868,7 +868,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 </histogram>
 
 <histogram name="Apps.AppListPlayStoreQueryState"
-    enum="AppListPlayStoreQueryState" expires_after="2021-02-21">
+    enum="AppListPlayStoreQueryState" expires_after="2021-04-25">
   <owner>hejq@chromium.org</owner>
   <summary>The state of a Play Store app search request.</summary>
 </histogram>

tools/metrics/histograms/histograms_xml/cryptohome/histograms.xml

@@ -22,7 +22,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 <histograms>
 
 <histogram name="Cryptohome.AsyncDBusRequest" units="ms"
-    expires_after="2021-02-21">
+    expires_after="2021-04-25">
   <owner>zuan@chromium.org</owner>
   <owner>cros-hwsec+uma@chromium.org</owner>
   <summary>

tools/metrics/histograms/histograms_xml/gpu/histograms.xml

@@ -563,7 +563,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 </histogram>
 
 <histogram name="GPU.DirectComposition.VideoPresentationMode"
-    enum="DirectCompositionVideoPresentationMode" expires_after="2020-12-31">
+    enum="DirectCompositionVideoPresentationMode" expires_after="2021-04-25">
   <owner>sunnyps@chromium.org</owner>
   <owner>zmo@chromium.org</owner>
   <summary>

tools/metrics/histograms/histograms_xml/uma/histograms.xml

@@ -427,7 +427,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 </histogram>
 
 <histogram name="UMA.PersistentHistograms.InitResult"
-    enum="PersistentHistogramsInitResult" expires_after="2021-02-21">
+    enum="PersistentHistogramsInitResult" expires_after="2021-04-25">
   <owner>bcwhite@chromium.org</owner>
   <owner>src/base/metrics/OWNERS</owner>
   <summary>

tools/metrics/histograms/histograms_xml/web_rtc/histograms.xml

@@ -657,7 +657,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 </histogram>
 
 <histogram name="WebRTC.Audio.ReceiverDeviceDelayMs" units="ms"
-    expires_after="2021-02-21">
+    expires_after="2021-04-25">
   <owner>hlundin@chromium.org</owner>
   <summary>
     The sound card's buffering delay for the receiving side. Sampled once every
@@ -666,7 +666,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 </histogram>
 
 <histogram name="WebRTC.Audio.ReceiverJitterBufferDelayMs" units="ms"
-    expires_after="2021-02-21">
+    expires_after="2021-04-25">
   <owner>hlundin@chromium.org</owner>
   <summary>
     The jitter buffer delay for the receiving side. Sampled once every 10 ms
@@ -912,7 +912,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 </histogram>
 
 <histogram name="WebRTC.Call.BitrateReceivedInKbps" units="kbps"
-    expires_after="2021-02-21">
+    expires_after="2021-04-25">
   <owner>holmer@chromium.org</owner>
   <summary>
     Average total bitrate received during a call (audio + video + RTCP), counted
@@ -940,7 +940,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 </histogram>
 
 <histogram name="WebRTC.Call.PacerBitrateInKbps" units="kbps"
-    expires_after="2021-02-21">
+    expires_after="2021-04-25">
   <owner>holmer@chromium.org</owner>
   <summary>
     Average pacer bitrate during a call, counted from first packet sent until
@@ -950,7 +950,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 </histogram>
 
 <histogram name="WebRTC.Call.RtcpBitrateReceivedInBps" units="bits/s"
-    expires_after="2021-02-21">
+    expires_after="2021-04-25">
   <owner>holmer@chromium.org</owner>
   <summary>
     Average RTCP bitrate received during a call, counted from first packet