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 88ca35d97a710dbb605f2e3ffb73047b0cd446f3..e4d77e8c632c409a2706a1530180dd76db28956f 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -4144,6 +4144,51 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   </summary>
 </histogram>
 
+<histogram base="true" name="BackgroundFetch.EventDispatchFailure.Dispatch"
+    enum="ServiceWorkerStatusCode">
+<!-- Name completed by histogram_suffixes name="BackgroundFetchEvents" -->
+
+  <owner>peter@chromium.org</owner>
+  <summary>
+    Records the Service Worker status code that caused a Background Fetch API
+    event to fail dispatching whilst trying to dispatch an event on the active
+    Service Worker.
+  </summary>
+</histogram>
+
+<histogram base="true" name="BackgroundFetch.EventDispatchFailure.FindWorker"
+    enum="ServiceWorkerStatusCode">
+<!-- Name completed by histogram_suffixes name="BackgroundFetchEvents" -->
+
+  <owner>peter@chromium.org</owner>
+  <summary>
+    Records the Service Worker status code that caused a Background Fetch API
+    event to fail dispatching whilst trying to find the Service Worker.
+  </summary>
+</histogram>
+
+<histogram base="true" name="BackgroundFetch.EventDispatchFailure.StartWorker"
+    enum="ServiceWorkerStatusCode">
+<!-- Name completed by histogram_suffixes name="BackgroundFetchEvents" -->
+
+  <owner>peter@chromium.org</owner>
+  <summary>
+    Records the Service Worker status code that caused a Background Fetch API
+    event to fail dispatching whilst trying to start the active Service Worker.
+  </summary>
+</histogram>
+
+<histogram base="true" name="BackgroundFetch.EventDispatchResult"
+    enum="BackgroundFetchEventDispatchResult">
+<!-- Name completed by histogram_suffixes name="BackgroundFetchEvents" -->
+
+  <owner>peter@chromium.org</owner>
+  <summary>
+    Records the result of dispatching one of the Background Fetch API events to
+    the Service Worker associated with the event.
+  </summary>
+</histogram>
+
 <histogram name="BackgroundMode.BackgroundApplicationsCount">
   <owner>atwilson@chromium.org</owner>
   <owner>mvanouwerkerk@chromium.org</owner>
@@ -62586,6 +62631,24 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   </summary>
 </histogram>
 
+<histogram name="ServiceWorker.BackgroundFetchAbortEvent.Time" units="ms">
+  <owner>peter@chromium.org</owner>
+  <summary>
+    The time taken between dispatching a BackgroundFetchAbortEvent to a Service
+    Worker and receiving a message that it finished handling the event. Includes
+    the time for the waitUntil() promise to settle.
+  </summary>
+</histogram>
+
+<histogram name="ServiceWorker.BackgroundFetchClickEvent.Time" units="ms">
+  <owner>peter@chromium.org</owner>
+  <summary>
+    The time taken between dispatching a BackgroundFetchClickEvent to a Service
+    Worker and receiving a message that it finished handling the event. Includes
+    the time for the waitUntil() promise to settle.
+  </summary>
+</histogram>
+
 <histogram name="ServiceWorker.BackgroundSyncEvent.Time" units="ms">
   <owner>jkarlin@chromium.org</owner>
   <summary>
@@ -82086,6 +82149,13 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <int value="2" label="Ok, got it"/>
 </enum>
 
+<enum name="BackgroundFetchEventDispatchResult" type="int">
+  <int value="0" label="Success"/>
+  <int value="1" label="Cannot find worker"/>
+  <int value="2" label="Cannot start worker"/>
+  <int value="3" label="Cannot dispatch the event"/>
+</enum>
+
 <enum name="BackgroundFetchTrigger" type="int">
   <int value="0" label="Wake-up of the persistent scheduler"/>
   <int value="1" label="NTP opened"/>
@@ -108925,6 +108995,8 @@ from previous Chrome versions.
   <int value="20" label="NAVIGATION_HINT_LINK_TAP_DOWN"/>
   <int value="21" label="EXTERNAL_REQUEST"/>
   <int value="22" label="PAYMENT_REQUEST"/>
+  <int value="23" label="BACKGROUND_FETCH_ABORT"/>
+  <int value="24" label="BACKGROUND_FETCH_CLICK"/>
 </enum>
 
 <enum name="ServiceWorkerPreparationType" type="int">
@@ -114889,6 +114961,15 @@ from previous Chrome versions.
   <affected-histogram name="Autofill.UnmaskPrompt.Duration"/>
 </histogram_suffixes>
 
+<histogram_suffixes name="BackgroundFetchEvents" separator=".">
+  <suffix name="AbortEvent" label="BackgroundFetchAbortEvent"/>
+  <suffix name="ClickEvent" label="BackgroundFetchClickEvent"/>
+  <affected-histogram name="BackgroundFetch.EventDispatchFailure.Dispatch"/>
+  <affected-histogram name="BackgroundFetch.EventDispatchFailure.FindWorker"/>
+  <affected-histogram name="BackgroundFetch.EventDispatchFailure.StartWorker"/>
+  <affected-histogram name="BackgroundFetch.EventDispatchResult"/>
+</histogram_suffixes>
+
 <histogram_suffixes name="BadBlockCounts" separator=".">
   <suffix name="Backupsys" label="backupsys partition"/>
   <suffix name="Bbt" label="bbt partition"/>