Framework to ascribe all network data use to a source.

chrome/browser/ui/tab_helpers.cc

Index: chrome/browser/ui/tab_helpers.cc
diff --git a/chrome/browser/ui/tab_helpers.cc b/chrome/browser/ui/tab_helpers.cc
index be248129d3d19090e116ad39f43469e5f174906c..721a1cd971ecc6588d100590aa797e9b2776a7c4 100644
--- a/chrome/browser/ui/tab_helpers.cc
+++ b/chrome/browser/ui/tab_helpers.cc
@@ -9,6 +9,8 @@
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/content_settings/chrome_content_settings_client.h"
 #include "chrome/browser/content_settings/tab_specific_content_settings.h"
+#include "chrome/browser/data_use_measurement/chrome_data_use_ascriber_service_factory.h"
+#include "chrome/browser/data_use_measurement/data_use_web_contents_observer.h"
 #include "chrome/browser/engagement/site_engagement_helper.h"
 #include "chrome/browser/engagement/site_engagement_service.h"
 #include "chrome/browser/external_protocol/external_protocol_observer.h"
@@ -158,6 +160,10 @@ void TabHelpers::AttachTabHelpers(WebContents* web_contents) {
       autofill::ChromeAutofillClient::FromWebContents(web_contents));
   ChromeTranslateClient::CreateForWebContents(web_contents);
   CoreTabHelper::CreateForWebContents(web_contents);
+  data_use_measurement::DataUseWebContentsObserver::CreateForWebContents(
+      web_contents,
+      data_use_measurement::ChromeDataUseAscriberServiceFactory::
+          GetForBrowserContext(web_contents->GetBrowserContext()));
   ExternalProtocolObserver::CreateForWebContents(web_contents);
   favicon::CreateContentFaviconDriverForWebContents(web_contents);
   FindTabHelper::CreateForWebContents(web_contents);