[scheduler] Add type to scheduler::TaskQueue

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 8428fb9f7ffd381f2a50ffe706c778288d202e65..3646e04883a2ee8376b778be14db81090bbfc452 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -50256,6 +50256,16 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   </summary>
 </histogram>
 
+<histogram name="RendererScheduler.NumberOfTasksPerQueueType"
+    enum="RendererSchedulerTaskQueueType">
+  <owner>altimin@chromium.org,alexclarke@chromium.org</owner>
+  <summary>
+    The number of completed renderer tasks split per task queue type. Used to
+    monitor usage of each type of task queues. Reported each time when task is
+    completed.
+  </summary>
+</histogram>
+
 <histogram name="RendererScheduler.TaskQueueManager.DelayedTaskLateness"
     units="ms">
   <owner>alexclarke@chromium.org</owner>
@@ -96579,6 +96589,20 @@ value.
   <int value="6" label="Unknown media type"/>
 </enum>
 
+<enum name="RendererSchedulerTaskQueueType" type="int">
+  <int value="0" label="Control"/>
+  <int value="1" label="Default"/>
+  <int value="2" label="DefaultLoading"/>
+  <int value="3" label="DefaultTimer"/>
+  <int value="4" label="Unthrottled"/>
+  <int value="5" label="FrameLoading"/>
+  <int value="6" label="FrameTimer"/>
+  <int value="7" label="FrameUnthrottled"/>
+  <int value="8" label="Compositor"/>
+  <int value="9" label="Idle"/>
+  <int value="10" label="Test"/>
+</enum>
+
 <enum name="RendererType" type="int">
   <int value="1" label="Normal renderer"/>
   <int value="2" label="Extension renderer"/>
@@ -98959,7 +98983,7 @@ value.
   <int value="7" label="Credential Frame Corrupt"/>
   <int value="8" label="Invalid Data Frame Flags"/>
 <!-- r181910 added an enum value here, so don't trust the counts for
-       the values below for Chrome builds after that revision. -->
+     the values below for Chrome builds after that revision. -->
 
   <int value="9" label="Invalid Status Code"/>
   <int value="10" label="Protocol Error"/>