Support needed to measure user and service traffic in Chrome.

chrome/browser/net/chrome_network_delegate.h

Index: chrome/browser/net/chrome_network_delegate.h
diff --git a/chrome/browser/net/chrome_network_delegate.h b/chrome/browser/net/chrome_network_delegate.h
index e4f69907556654d956d3e0d46d1d91e4192e8120..33734cc781878bcf537f12573c96ac7433ebe7f6 100644
--- a/chrome/browser/net/chrome_network_delegate.h
+++ b/chrome/browser/net/chrome_network_delegate.h
@@ -16,6 +16,7 @@
 #include "base/memory/scoped_ptr.h"
 #include "base/values.h"
 #include "components/data_reduction_proxy/core/browser/data_reduction_proxy_metrics.h"
+#include "components/data_use_measurement/content/data_use_measurement.h"
 #include "net/base/network_delegate_impl.h"
 
 class ChromeExtensionsNetworkDelegate;
@@ -202,6 +203,9 @@ class ChromeNetworkDelegate : public net::NetworkDelegateImpl {
   // When true, allow access to all file:// URLs.
   static bool g_allow_file_access_;
 
+  // Component to measure data use.
+  data_use_measurement::DataUseMeasurement data_use_measurement_;

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

Worth noting this will miss PAC requests (Though that may change), requests made
from the SystemPolicyRequestContext, gcm requests (Which don't use URLRequests),
and requests made from any other private URLRequestContexts
(https://code.google.com/p/chromium/codesearch#search/&q=URLRequestContextBuil...
shows at least some of them).

It should catch most TCP and QUIC activity, though.

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

Thanks for the heads up. I think currently most of our target services are
covered, so it may be good enough at this stage but it is a good idea to cover
those kinds of request too to have a more holistic view.

+
   bool experimental_web_platform_features_enabled_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeNetworkDelegate);