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 c86931cb3bf8d25602259b320f04ef0ecfb7dc5a..6ec7221977fd644ed0e77d315501180f2d756c9f 100644
--- a/chrome/browser/net/chrome_network_delegate.cc
+++ b/chrome/browser/net/chrome_network_delegate.cc
@@ -30,6 +30,7 @@
 #include "chrome/browser/custom_handlers/protocol_handler_registry.h"
 #include "chrome/browser/net/chrome_extensions_network_delegate.h"
 #include "chrome/browser/net/connect_interceptor.h"
+#include "chrome/browser/net/data_use_measurement.h"
 #include "chrome/browser/net/request_source_bandwidth_histograms.h"
 #include "chrome/browser/net/safe_search_util.h"
 #include "chrome/browser/profiles/profile_manager.h"
@@ -487,6 +488,14 @@ void ChromeNetworkDelegate::OnRawBytesRead(const net::URLRequest& request,
 
 void ChromeNetworkDelegate::OnCompleted(net::URLRequest* request,
                                         bool started) {
+  // We have assumed that all the request for user contents and for services

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

Don't personify code. Also, don't assume. How about the following:

// Report the number of bytes received to UMA, separating user requests. i.e.,
those that are requested as part of a page load, from requests issued by Chrome
services.

[amohammadkhan, 2015/08/11 22:04:34]

Done.

+  // are passing this path. So we record All the data use here and later in
+  // ReportDataUsage function, ALL traffic is divided to two sub-categories of
+  // USER_DATA and NOT_USER_DATA. Notice to the fact that detailed usage
+  // statistics of services is not gathered here and it is recorded in
+  // OnURLFetchComplete function of those services.
+  ReportDataUsage(request);
+
   RecordNetworkErrorHistograms(request);
   if (started) {
     // Only call in for requests that were started, to obey the precondition