commit efd57c2a534342a6fa7fd5f3690c8c8dff90f639
author Mike Dougherty <michaeldo@chromium.org> Thu Aug 28 21:52:46 2025
committer Chromium LUCI CQ <chromium-scoped@luci-project-accounts.iam.gserviceaccount.com> Thu Aug 28 21:52:46 2025
tree 8027b1223641f9836a9e24bd0c05d1b1baa2a619
parent b1cbb8ee55bf7b14a84f4914fdcd07b4c3acc520

Extend  IOS.SandboxMetrics.* metrics

Fixed: 434692820, 436259331, 439591998
Change-Id: I30af5a73cd9cbf5ee44b14ab8d49a3d4c5c3ee3d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6896931
Commit-Queue: Mike Dougherty <michaeldo@chromium.org>
Reviewed-by: Ginny Huang <ginnyhuang@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1508036}

tools/metrics/histograms/metadata/ios/histograms.xml

diff --git a/tools/metrics/histograms/metadata/ios/histograms.xml b/tools/metrics/histograms/metadata/ios/histograms.xml
index 1bf31b2..272c000 100644
--- a/tools/metrics/histograms/metadata/ios/histograms.xml
+++ b/tools/metrics/histograms/metadata/ios/histograms.xml
@@ -5210,19 +5210,20 @@
 </histogram>
 
 <histogram name="IOS.SandboxMetrics.ApplicationSupportSize" units="MB"
-    expires_after="2024-03-09">
+    expires_after="2026-08-01">
   <owner>michaeldo@chromium.org</owner>
   <owner>rohitrao@chromium.org</owner>
   <summary>
     The amount of storage used by the &quot;Application Support&quot; directory
     excluding the storage used by all currently open tabs. Logged at application
     startup, maximum once every 2 weeks, if the
-    `kLogApplicationStorageSizeMetrics` flag is enabled.
+    `kLogApplicationStorageSizeMetrics` flag is enabled. Warning: this histogram
+    was expired from 2024-03-09 to 2025-08-28; data may be missing.
   </summary>
 </histogram>
 
 <histogram name="IOS.SandboxMetrics.AverageColorSnapshotSize" units="KB"
-    expires_after="2025-09-28">
+    expires_after="2026-08-01">
   <owner>michaeldo@chromium.org</owner>
   <owner>rohitrao@chromium.org</owner>
   <summary>
@@ -5233,7 +5234,7 @@
 </histogram>
 
 <histogram name="IOS.SandboxMetrics.AverageGreySnapshotSize" units="KB"
-    expires_after="2025-09-14">
+    expires_after="2026-08-01">
   <owner>michaeldo@chromium.org</owner>
   <owner>rohitrao@chromium.org</owner>
   <summary>
@@ -5244,7 +5245,7 @@
 </histogram>
 
 <histogram name="IOS.SandboxMetrics.ChromeCacheSize" units="MB"
-    expires_after="2025-09-28">
+    expires_after="2026-08-01">
   <owner>michaeldo@chromium.org</owner>
   <owner>rohitrao@chromium.org</owner>
   <summary>
@@ -5255,18 +5256,19 @@
 </histogram>
 
 <histogram name="IOS.SandboxMetrics.ChromeTempSize" units="MB"
-    expires_after="2024-03-09">
+    expires_after="2026-08-01">
   <owner>michaeldo@chromium.org</owner>
   <owner>rohitrao@chromium.org</owner>
   <summary>
     The amount of storage used by the Chrome tmp directory. Logged at
     application startup, maximum once every 2 weeks, if the
-    `kLogApplicationStorageSizeMetrics` flag is enabled.
+    `kLogApplicationStorageSizeMetrics` flag is enabled. Warning: this histogram
+    was expired from 2024-03-09 to 2025-08-28; data may be missing.
   </summary>
 </histogram>
 
 <histogram name="IOS.SandboxMetrics.DocumentsSize2" units="MB"
-    expires_after="2025-09-14">
+    expires_after="2026-08-01">
   <owner>michaeldo@chromium.org</owner>
   <owner>rohitrao@chromium.org</owner>
   <summary>
@@ -5278,18 +5280,19 @@
 </histogram>
 
 <histogram name="IOS.SandboxMetrics.FaviconsSize" units="KB"
-    expires_after="2024-03-09">
+    expires_after="2026-08-01">
   <owner>michaeldo@chromium.org</owner>
   <owner>rohitrao@chromium.org</owner>
   <summary>
     The total amount of storage used by the favicons file. Logged at application
     startup, maximum once every 2 weeks, if the
-    `kLogApplicationStorageSizeMetrics` flag is enabled.
+    `kLogApplicationStorageSizeMetrics` flag is enabled. Warning: this histogram
+    was expired from 2024-03-09 to 2025-08-28; data may be missing.
   </summary>
 </histogram>
 
 <histogram name="IOS.SandboxMetrics.LibrarySize" units="MB"
-    expires_after="2025-09-14">
+    expires_after="2026-08-01">
   <owner>michaeldo@chromium.org</owner>
   <owner>rohitrao@chromium.org</owner>
   <summary>
@@ -5301,7 +5304,7 @@
 </histogram>
 
 <histogram name="IOS.SandboxMetrics.OptimizationGuideModelDownloadedItems"
-    units="items" expires_after="2025-09-14">
+    units="items" expires_after="2026-08-01">
   <owner>michaeldo@chromium.org</owner>
   <owner>rohitrao@chromium.org</owner>
   <summary>
@@ -5312,7 +5315,7 @@
 </histogram>
 
 <histogram name="IOS.SandboxMetrics.OptimizationGuideModelDownloadsSize"
-    units="MB" expires_after="2025-09-14">
+    units="MB" expires_after="2026-08-01">
   <owner>michaeldo@chromium.org</owner>
   <owner>rohitrao@chromium.org</owner>
   <summary>
@@ -5323,7 +5326,7 @@
 </histogram>
 
 <histogram name="IOS.SandboxMetrics.TotalOTRSessionSize" units="MB"
-    expires_after="2025-09-14">
+    expires_after="2026-08-01">
   <owner>michaeldo@chromium.org</owner>
   <owner>rohitrao@chromium.org</owner>
   <summary>
@@ -5335,7 +5338,7 @@
 </histogram>
 
 <histogram name="IOS.SandboxMetrics.TotalRegularSessionSize" units="MB"
-    expires_after="2025-09-07">
+    expires_after="2026-08-01">
   <owner>michaeldo@chromium.org</owner>
   <owner>rohitrao@chromium.org</owner>
   <summary>
@@ -5348,7 +5351,7 @@
 </histogram>
 
 <histogram name="IOS.SandboxMetrics.WebKitCacheSize" units="MB"
-    expires_after="2025-09-07">
+    expires_after="2026-08-01">
   <owner>michaeldo@chromium.org</owner>
   <owner>rohitrao@chromium.org</owner>
   <summary>
@@ -5359,7 +5362,7 @@
 </histogram>
 
 <histogram name="IOS.SandboxMetrics.WebKitTempSize" units="MB"
-    expires_after="2025-09-14">
+    expires_after="2026-08-01">
   <owner>michaeldo@chromium.org</owner>
   <owner>rohitrao@chromium.org</owner>
   <summary>
@@ -5370,7 +5373,7 @@
 </histogram>
 
 <histogram name="IOS.SandboxMetrics.WebsiteLocalData" units="MB"
-    expires_after="2025-09-14">
+    expires_after="2026-08-01">
   <owner>michaeldo@chromium.org</owner>
   <owner>rohitrao@chromium.org</owner>
   <summary>