Support needed to measure user and service traffic in Chrome.

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 1154ea002050dc5ecbc2f21f4d742363bb8a19c7..aeb5c57df60760832e33aa070dcf42d7731c1c08 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -5212,6 +5212,36 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   </summary>
 </histogram>
 
+<histogram name="DataUse.NotUser" units="bytes">
+  <owner>amohammadkhan@chromium.org</owner>

[bengr, 2015/08/07 18:00:02]

Add me as an owner to all of your histograms. You leave soon. :)

[amohammadkhan, 2015/08/11 22:04:37]

Done.

+  <summary>
+    The total amount of data use of Chrome for services. This traffic is not

[bengr, 2015/08/07 18:00:02]

The total data use of Chrome's services.

[amohammadkhan, 2015/08/11 22:04:37]

Done.

+    requested by Renderer process.

[bengr, 2015/08/07 18:00:02]

Please verify with nasko@ that the trick of checking that the request came from
the renderer process will continue to work once PlzNavigate is in use.

[amohammadkhan, 2015/08/11 22:04:36]

I have asked him in an Email and I am waiting for his answer.

+  </summary>
+</histogram>
+
+<histogram name="DataUse.Service" units="bytes">
+  <owner>amohammadkhan@chromium.org</owner>
+  <summary>
+    The request and reponse size of the messages exchanged by a service.
+  </summary>
+</histogram>
+
+<histogram name="DataUse.Services" enum="DataUseServices">
+  <owner>amohammadkhan@chromium.org</owner>
+  <summary>
+    The request and reponse size of the messages exchanged by a service.
+  </summary>
+</histogram>
+
+<histogram name="DataUse.User" units="bytes">
+  <owner>amohammadkhan@chromium.org</owner>
+  <summary>
+    The total amount of data use of Chrome for user traffic. This traffic is
+    requested by Renderer process.
+  </summary>
+</histogram>
+
 <histogram name="DefaultBrowser.InteractionResult"
     enum="MakeChromeDefaultResult">
   <owner>gab@chromium.org</owner>
@@ -53492,6 +53522,10 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
       label="Arrived at settings menu by another path: entered on, exited on"/>
 </enum>
 
+<enum name="DataUseServices" type="int">
+  <int value="700836285" label="Suggestion Service"/>
+</enum>
+
 <enum name="DecodedImageType" type="int">
   <int value="0" label="kImageUnknown"/>
   <int value="1" label="kImageJPEG"/>
@@ -72308,6 +72342,25 @@ To add a new entry, add it with any value and run test to compute valid value.
       name="DataReductionProxy.RequestCompletionErrorCodes.MainFrame"/>
 </histogram_suffixes>
 
+<histogram_suffixes name="Datause.Dimensions" separator=".">

[bengr, 2015/08/07 18:00:02]

DataUse

[amohammadkhan, 2015/08/11 22:04:36]

Done.

+  <affected-histogram name="DataUse.NotUser"/>
+  <affected-histogram name="DataUse.Services"/>
+  <suffix name="Upload.Background.Wifi"/>
+  <suffix name="Upload.Background.Cell"/>
+  <suffix name="Upload.Foreground.Wifi"/>
+  <suffix name="Upload.Foreground.Cell"/>
+  <suffix name="Download.Background.Wifi"/>
+  <suffix name="Download.Background.Cell"/>
+  <suffix name="Download.Foreground.Wifi"/>
+  <suffix name="Download.Foreground.Cell"/>
+  <affected-histogram name="DataUse.User"/>
+</histogram_suffixes>
+
+<histogram_suffixes name="DataUse.Service.Types" separator=".">
+  <suffix name="Suggestion"/>
+  <affected-histogram name="DataUse.Service"/>
+</histogram_suffixes>
+
 <histogram_suffixes name="DefaultAppsExperiment">
   <suffix name="NoDefaultApps" label="User's without default apps installed"/>
   <suffix name="WithDefaultApps" label="User's with default apps installed"/>