Support needed to measure user and service traffic in Chrome.

chrome/browser/net/chrome_network_delegate.cc

Index: chrome/browser/net/chrome_network_delegate.cc
diff --git a/chrome/browser/net/chrome_network_delegate.cc b/chrome/browser/net/chrome_network_delegate.cc
index bed47f796f2a1f8d21426ade117ada47c08e8877..558ced7a683275ec62949155a644487fbfc1bf3b 100644
--- a/chrome/browser/net/chrome_network_delegate.cc
+++ b/chrome/browser/net/chrome_network_delegate.cc
@@ -491,6 +491,7 @@ void ChromeNetworkDelegate::OnNetworkBytesReceived(
 
 void ChromeNetworkDelegate::OnCompleted(net::URLRequest* request,
                                         bool started) {
+  data_use_measurement_.ReportDataUseUMA(request);

[mmenke, 2015/09/02 21:48:08]

You need to do this on redirects, too - following a redirect reset the bytes
received/sent (Though if the request is cancelled instead of following the
redirect, we'll end up here, and you'll double count the data, I believe.  I
don't see an easy way around that.  Suggest a TODO)

[amohammadkhan, 2015/09/03 04:31:18]

Done.

   RecordNetworkErrorHistograms(request);
   if (started) {
     // Only call in for requests that were started, to obey the precondition