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..267874de413dd63fa7c69b0d1cedad5101b7b86c 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -2186,13 +2186,6 @@ other types of suffix sets.
   <summary>Measures the time taken for AudioOutputController::</summary>
 </histogram>
 
-<histogram name="Media.AudioOutputControllerDataNotReady" units="ms">

[Alexei Svitkine (slow), 2013/05/29 21:25:07]

We don't usually remove histograms from this file, just mark them as obsolete
using a tag. (Since their names are used for hashing by the dashboard, to map
hashes to the correct histogram names.)

-  <summary>
-    Time spent waiting in AudioOutputController::WaitTillDataReady() if the data
-    was not initially available.
-  </summary>
-</histogram>
-
 <histogram name="Media.AudioRendererEvents" enum="AudioRendererEvents">
   <summary>Captures statistics for various AudioRendererImpl events.</summary>
 </histogram>
@@ -14762,6 +14755,9 @@ 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>