Reduce wait time for Windows in AudioOutputController:WaitTillDataReady()

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 fdb429b3ad5bbc019babb89278af80c79c6cbfb5..a1b2b1b609c358c453ae2eaf40430735b2d77ff0 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -2186,10 +2186,10 @@ other types of suffix sets.
   <summary>Measures the time taken for AudioOutputController::</summary>
 </histogram>
 
-<histogram name="Media.AudioOutputControllerDataNotReady" units="ms">
+<histogram name="Media.AudioOutputController.DataReady" enum="BooleanSuccess">
   <summary>
-    Time spent waiting in AudioOutputController::WaitTillDataReady() if the data
-    was not initially available.
+    True if data was ready when AudioOutputController::WaitTillDataReady() was
+    called.
   </summary>
 </histogram>
 
@@ -14762,6 +14762,9 @@ other types of suffix sets.
   <group name="PlayTime"
       label="Measures the time taken for DoPlay(). Technically only the
              worker method AudioOutputController::PollAndStartIfDataReady()."/>
+  <group name="WaitForDataTime"
+      label="Measures the time waited in WaitTillDataReady() if data was not
+             initially available"/>
   <affected-histogram name="Media.AudioOutputController"/>
 </fieldtrial>