Record UMA for total data usage consumed by Chromium

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 0e1c4a4e9efc36ea2721ed804dee9a8196d2a448..5bc04490fe0c590f1d56dc6e3735726636444431 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -8486,6 +8486,16 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   </summary>
 </histogram>
 
+<histogram name="DataUse.BytesReceived" units="bytes">
+  <owner>tbansal@chromium.org</owner>
+  <summary>Count of total bytes received by the Chrome on the network.</summary>
+</histogram>
+
+<histogram name="DataUse.BytesSent" units="bytes">
+  <owner>tbansal@chromium.org</owner>
+  <summary>Count of total bytes sent by the Chrome on the network.</summary>
+</histogram>
+
 <histogram name="DataUse.MessageSize" units="bytes">
   <owner>amohammadkhan@chromium.org</owner>
   <owner>bengr@chromium.org</owner>
@@ -100527,6 +100537,13 @@ To add a new entry, add it with any value and run test to compute valid value.
   <affected-histogram name="DataUsage.ReportSubmission.Bytes"/>
 </histogram_suffixes>
 
+<histogram_suffixes name="DataUse.Bytes" separator=".">
+  <suffix name="Delegate" label="As reported by the network delegate."/>
+  <suffix name="OS" label="As reported by the operating system."/>
+  <affected-histogram name="DataUse.BytesReceived"/>
+  <affected-histogram name="DataUse.BytesSent"/>
+</histogram_suffixes>
+
 <histogram_suffixes name="DataUse.Dimensions" separator=".">
   <suffix name="Upstream.Background.NotCellular"/>
   <suffix name="Upstream.Background.Cellular"/>