tools/metrics/histograms/histograms.xml

Index: tools/metrics/histograms/histograms.xml
diff --git a/tools/metrics/histograms/histograms.xml b/tools/metrics/histograms/histograms.xml
index b5ebd73ce213ba382d8b986e8f03a1373fbc4020..1953993e547c9122300b8312ec3cec2b562ead17 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -19424,6 +19424,13 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   </summary>
 </histogram>
 
+<histogram name="FileReaderSync.WorkerType" enum="FileReaderSyncWorkerType">
+  <owner>mek@chromium.org</owner>
+  <summary>
+    How often which worker types create FileReaderSync instances.
+  </summary>
+</histogram>
+
 <histogram name="FileSystem.DirectoryDatabaseInit"
     enum="FileSystemDatabaseInitResult">
   <owner>tzik@chromium.org</owner>
@@ -90994,6 +91001,7 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
       label="HTMLIFrameElementAllowfullscreenAttributeSetAfterContentLoad"/>
   <int value="1806" label="PointerEventSetCaptureOutsideDispatch"/>
   <int value="1807" label="NotificationPermissionRequestedInsecureOrigin"/>
+  <int value="1808" label="V8FileReaderSync_Constructor"/>
 </enum>
 
 <enum name="FetchRequestMode" type="int">
@@ -91833,6 +91841,13 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <int value="6" label="File could not be exclusively opened."/>
 </enum>
 
+<enum name="FileReaderSyncWorkerType" type="int">
+  <int value="0" label="Dedicated Worker"/>
+  <int value="1" label="Shared Worker"/>
+  <int value="2" label="Service Worker"/>
+  <int value="3" label="Other"/>
+</enum>
+
 <enum name="FileSystemDatabaseInitResult" type="int">
   <int value="0" label="OK"/>
   <int value="1" label="Corruption"/>