Bump histograms and remove unused QueueSize

3 of the histograms can be bumped into the future, however, one of them
FileBrowser.GoogleDrive.BulkPinning.QueueSize is no longer used. The
queue size experiment didn't go ahead, so this metric always returns 5.
Let's remove it.

OBSOLETE_HISTOGRAMS[FileBrowser.GoogleDrive.BulkPinning.QueueSize]=No
longer in use.

Fixed: 409043652
Fixed: 409043322
Fixed: 409043100
Change-Id: Id264ff6c7de3bb9a91e661b0a7fa0e32d8d23f0f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6438132
Reviewed-by: Nigel Tao <nigeltao@chromium.org>
Commit-Queue: Ben Reich <benreich@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1445621}

chromeos/ash/components/drivefs/drivefs_pinning_manager.cc

@@ -1188,9 +1188,6 @@ void PinningManager::StartPinning() {
     is_first_sync_ = false;
   }
 
-  base::UmaHistogramSparse("FileBrowser.GoogleDrive.BulkPinning.QueueSize",
-                           queue_size_);
-
   timer_ = base::ElapsedTimer();
   progress_.stage = Stage::kSyncing;
   NotifyProgress();

tools/metrics/histograms/metadata/file/histograms.xml

@@ -629,17 +629,6 @@ chromium-metrics-reviews@google.com.
   </summary>
 </histogram>
 
-<histogram name="FileBrowser.GoogleDrive.BulkPinning.QueueSize" units="count"
-    expires_after="2025-05-21">
-  <owner>simmonsjosh@google.com</owner>
-  <owner>src/ui/file_manager/OWNERS</owner>
-  <summary>
-    The maximum number of files that can be concurrently downloaded by the
-    bulk-pinning manager. This is recorded every time the bulk-pinning manager
-    starts pinning files, after having enumerated all the files to pin.
-  </summary>
-</histogram>
-
 <histogram
     name="FileBrowser.GoogleDrive.BulkPinning.StateWhenCacheVolumeRemoved"
     enum="BooleanEnabled" expires_after="2025-07-01">
@@ -1628,7 +1617,7 @@ chromium-metrics-reviews@google.com.
 </histogram>
 
 <histogram name="FileBrowser.Trash.DirectorySetupFailed"
-    enum="FileManagerTrashDirectorySetupFailedStep" expires_after="2025-05-21">
+    enum="FileManagerTrashDirectorySetupFailedStep" expires_after="2026-04-07">
   <owner>simmonsjosh@google.com</owner>
   <owner>src/ui/file_manager/OWNERS</owner>
   <summary>
@@ -1647,7 +1636,7 @@ chromium-metrics-reviews@google.com.
 </histogram>
 
 <histogram name="FileBrowser.Trash.RestoreFailedNoParent"
-    enum="RestoreFailedNoParentType" expires_after="2025-05-21">
+    enum="RestoreFailedNoParentType" expires_after="2026-04-07">
   <owner>simmonsjosh@google.com</owner>
   <owner>src/ui/file_manager/OWNERS</owner>
   <summary>

tools/metrics/histograms/metadata/others/histograms.xml

@@ -6410,7 +6410,7 @@ chromium-metrics-reviews@google.com.
 </histogram>
 
 <histogram name="NativeSmbFileShare.MountCount" units="Active Mounts"
-    expires_after="2025-05-21">
+    expires_after="2026-04-07">
   <owner>simmonsjosh@google.com</owner>
   <owner>src/chrome/browser/ash/smb_client/OWNERS</owner>
   <summary>