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 ba8aa2e7d974703b9e82056b9b0ae5905c399184..d8acd83e967176334aa526071a96652bb27f0aed 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -3903,6 +3903,14 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   </summary>
 </histogram>
 
+<histogram name="Canvas.ReturnImageFormats" enum="CanvasReturnImageFormat">
+  <owner>xlai@chromium.org</owner>
+  <summary>
+    Records the occurence of image file formats passed into toDataURL and toBlob
+    functions in canvas.
+  </summary>
+</histogram>
+
 <histogram name="CAPSUpdater.Step" enum="CAPSUpdaterStep">
   <owner>cpu@chromium.org</owner>
   <summary>
@@ -60838,6 +60846,16 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <int value="11" label="HibernationAbortedBecauseNoSurface"/>
 </enum>
 
+<enum name="CanvasReturnImageFormat" type="int">
+  <int value="0" label="PNG"/>
+  <int value="1" label="JPEG"/>
+  <int value="2" label="WEBP"/>
+  <int value="3" label="GIF"/>
+  <int value="4" label="BMP"/>
+  <int value="5" label="ICO"/>
+  <int value="6" label="TIFF"/>
+</enum>
+
 <enum name="CAPSUpdaterStep" type="int">
   <int value="0" label="CAPS component ready"/>
   <int value="1" label="CAPS component missing"/>
@@ -84783,6 +84801,13 @@ To add a new entry, add it with any value and run test to compute valid value.
   <affected-histogram name="PLT.BeginToFinish_Reload"/>
 </histogram_suffixes>
 
+<histogram_suffixes name="CanvasReturnImageFormatFunctions">
+  <suffix name="toDataURL" label="Image formats passed to canvas.toDataURL"/>
+  <suffix name="toBlobCallback"
+      label="Image formats passed to canvas.toBlob(callback)"/>
+  <affected-histogram name="Canvas.ReturnImageFormats"/>
+</histogram_suffixes>
+
 <histogram_suffixes name="CertificateTypeAlgorithms" separator=".">
   <owner>rsleevi@chromium.org</owner>
   <suffix name="DH" label="DH"/>