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 a0891c77c430d53434d54bcd17472b2856b5af76..2f2c21e3e177ab7375ee109f83127627b081498b 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -22168,6 +22168,40 @@ Therefore, the affected-histogram name has to have at least one dot in it.
   </summary>
 </histogram>
 
+<histogram name="Renderer4.GpuRasterizationEnabled" units="BooleanEnabled">
+  <owner>wiltzius@chromium.org</owner>

[Alexei Svitkine (slow), 2014/05/30 18:52:28]

Would it make more sense for you to be the owner for these, given you know the
intimate details of how they work? The idea of owners is to have the eng who can
explain this histogram listed there.

[alokp, 2014/05/30 19:02:37]

Done.

+  <summary>
+    Whether gpu rasterization is enabled (checked once after the page is painted
+    for the first time).
+  </summary>
+</histogram>
+
+<histogram name="Renderer4.GpuRasterizationSuitableContent"
+    units="BooleanEnabled">
+  <owner>wiltzius@chromium.org</owner>
+  <summary>
+    If gpu rasterization is enabled, whether the page contents are suitable for
+    gpu rasterization (checked once after the page is painted for the first
+    time).
+  </summary>
+</histogram>
+
+<histogram name="Renderer4.GpuRasterizationTriggered" units="BooleanEnabled">
+  <owner>wiltzius@chromium.org</owner>
+  <summary>
+    If gpu rasterization is enabled, whether it was triggered (checked once
+    after the page is painted for the first time).
+  </summary>
+</histogram>
+
+<histogram name="Renderer4.GpuRasterizationUsed" units="BooleanEnabled">
+  <owner>wiltzius@chromium.org</owner>
+  <summary>
+    If gpu rasterization is enabled, whether it was actually used for the page
+    (checked once after the page is painted for the first time).
+  </summary>
+</histogram>
+
 <histogram name="Renderer4.InvalidationRegionApproximateRectCount"
     units="rects">
   <owner>wiltzius@chromium.org</owner>