Update expiry date for ChromeOS.Apps.ExternalProtocolDialog

BUG=984840

(cherry picked from commit c6657cc247ef282d0a5abe4fafaf5c7b811ec4b7)

Change-Id: Id2cff2cf474399595700bbea05a9ff240218891e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1739236
Reviewed-by: Ilya Sherman <[email protected]>
Commit-Queue: Melissa Zhang <[email protected]>
Cr-Original-Commit-Position: refs/heads/master@{#685061}
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1750512
Reviewed-by: Dominick Ng <[email protected]>
Cr-Commit-Position: refs/branch-heads/3865@{#344}
Cr-Branched-From: 0cdcc6158160790658d1f033d3db873603250124-refs/heads/master@{#681094}
diff --git a/tools/metrics/histograms/histograms.xml b/tools/metrics/histograms/histograms.xml
index de7a505..addbae0b 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -18708,7 +18708,7 @@
 </histogram>
 
 <histogram name="ChromeOS.Apps.ExternalProtocolDialog"
-    enum="ArcIntentHandlerAction" expires_after="2019-09-17">
+    enum="ArcIntentHandlerAction" expires_after="M82">
   <owner>[email protected]</owner>
   <owner>[email protected]</owner>
   <owner>[email protected]</owner>
@@ -18719,7 +18719,7 @@
 </histogram>
 
 <histogram name="ChromeOS.Apps.ExternalProtocolDialog.Accepted"
-    enum="ArcExternalProtocolAction" expires_after="2019-09-17">
+    enum="ArcExternalProtocolAction" expires_after="M82">
   <owner>[email protected]</owner>
   <owner>[email protected]</owner>
   <owner>[email protected]</owner>
@@ -18731,7 +18731,7 @@
 </histogram>
 
 <histogram name="ChromeOS.Apps.ExternalProtocolDialog.Rejected"
-    enum="ArcExternalProtocolAction" expires_after="2019-09-17">
+    enum="ArcExternalProtocolAction" expires_after="M82">
   <owner>[email protected]</owner>
   <owner>[email protected]</owner>
   <owner>[email protected]</owner>