Reland: Notifications: Split up image loading histograms by image type

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 50c656f7c7a6c30490e717e4c25ee2631bfd9119..4f46398b3dc7c2c3178553a6652f3099c43ef45d 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -39049,11 +39049,17 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="Notifications.Icon.FileSize" units="bytes">
+  <obsolete>
+    Deprecated Nov 2016 in favor of Notifications.LoadFileSize.*
+  </obsolete>
   <owner>peter@chromium.org</owner>
   <summary>The number of bytes loaded for a Web Notification icon.</summary>
 </histogram>
 
 <histogram name="Notifications.Icon.LoadFailTime" units="ms">
+  <obsolete>
+    Deprecated Nov 2016 in favor of Notifications.LoadFailTime.*
+  </obsolete>
   <owner>peter@chromium.org</owner>
   <summary>
     The number of milliseconds it took to fail loading an icon for a Web
@@ -39062,6 +39068,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="Notifications.Icon.LoadFinishTime" units="ms">
+  <obsolete>
+    Deprecated Nov 2016 in favor of Notifications.LoadFinishTime.*
+  </obsolete>
   <owner>peter@chromium.org</owner>
   <summary>
     The number of milliseconds it took to finish successfully loading an icon
@@ -39070,6 +39079,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="Notifications.Icon.ScaleDownTime" units="ms">
+  <obsolete>
+    Deprecated Nov 2016 in favor of Notifications.LoadScaleDownTime.*
+  </obsolete>
   <owner>peter@chromium.org</owner>
   <summary>
     The number of milliseconds it took to scale down an icon for a Web
@@ -39077,6 +39089,45 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   </summary>
 </histogram>
 
+<histogram name="Notifications.LoadFailTime" units="ms">
+<!-- Name completed by histogram_suffixes name="NotificationImageTypes" -->
+
+  <owner>johnme@chromium.org</owner>
+  <summary>
+    The number of milliseconds it took to fail loading an icon/image for a Web
+    Notification.
+  </summary>
+</histogram>
+
+<histogram name="Notifications.LoadFileSize" units="bytes">
+<!-- Name completed by histogram_suffixes name="NotificationImageTypes" -->
+
+  <owner>johnme@chromium.org</owner>
+  <summary>
+    The number of bytes loaded for a Web Notification icon/image.
+  </summary>
+</histogram>
+
+<histogram name="Notifications.LoadFinishTime" units="ms">
+<!-- Name completed by histogram_suffixes name="NotificationImageTypes" -->
+
+  <owner>johnme@chromium.org</owner>
+  <summary>
+    The number of milliseconds it took to finish successfully loading an
+    icon/image for a Web Notification.
+  </summary>
+</histogram>
+
+<histogram name="Notifications.LoadScaleDownTime" units="ms">
+<!-- Name completed by histogram_suffixes name="NotificationImageTypes" -->
+
+  <owner>johnme@chromium.org</owner>
+  <summary>
+    The number of milliseconds it took to scale down an icon/image for a Web
+    Notification.
+  </summary>
+</histogram>
+
 <histogram name="Notifications.PerNotificationActions"
     enum="NotificationActionType">
   <owner>dewittj@chromium.org</owner>
@@ -110267,6 +110318,17 @@ value.
   <affected-histogram name="Notifications.Display"/>
 </histogram_suffixes>
 
+<histogram_suffixes name="NotificationImageTypes" separator=".">
+  <suffix name="ActionIcon"/>
+  <suffix name="Badge"/>
+  <suffix name="Icon"/>
+  <suffix name="Image"/>
+  <affected-histogram name="Notifications.LoadFailTime"/>
+  <affected-histogram name="Notifications.LoadFileSize"/>
+  <affected-histogram name="Notifications.LoadFinishTime"/>
+  <affected-histogram name="Notifications.LoadScaleDownTime"/>
+</histogram_suffixes>
+
 <histogram_suffixes name="NQE.Accuracy.Metric.Accuracy.DiffPositiveOrNegative"
     separator=".">
   <suffix name="Negative"