Revert 132479 - Transmit a X-Chrome-UMA-Enabled bit to Google domains from clients that have UMA en…

chrome/browser/net/chrome_network_delegate.cc

Index: chrome/browser/net/chrome_network_delegate.cc
===================================================================
--- chrome/browser/net/chrome_network_delegate.cc	(revision 132487)
+++ chrome/browser/net/chrome_network_delegate.cc	(working copy)
@@ -14,8 +14,6 @@
 #include "chrome/browser/extensions/extension_event_router_forwarder.h"
 #include "chrome/browser/extensions/extension_info_map.h"
 #include "chrome/browser/extensions/extension_process_manager.h"
-#include "chrome/browser/google/google_util.h"
-#include "chrome/browser/metrics/metrics_service.h"
 #include "chrome/browser/prefs/pref_member.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/task_manager/task_manager.h"
@@ -167,10 +165,6 @@
     net::URLRequest* request,
     const net::CompletionCallback& callback,
     net::HttpRequestHeaders* headers) {
-  // Attach any applicable Chrome metrics headers. This is a best-effort attempt
-  // where failure will not cause OnBeforeSendHeaders to back out.
-  AddChromeMetricsStateHeader(request, headers);
-
   return ExtensionWebRequestEventRouter::GetInstance()->OnBeforeSendHeaders(
       profile_, extension_info_map_.get(), request, callback, headers);
 }
@@ -310,23 +304,3 @@
 
   return allow;
 }
-
-void ChromeNetworkDelegate::AddChromeMetricsStateHeader(
-    net::URLRequest* request,
-    net::HttpRequestHeaders* headers) {
-  // Note our criteria for attaching Chrome experiment headers:
-  // 1. We only transmit to *.google.<TLD> domains. NOTE that this use of
-  //    google_util helpers to check this does not guarantee that the URL is
-  //    Google-owned, only that it is of the form *.google.<TLD>. In the future
-  //    we may choose to reinforce this check.
-  // 2. We must verify that the transmitting profile is not off the record.
-  // 3. For the X-Chrome-UMA-Enabled bit, we only set it if UMA is in fact
-  //    enabled for this install of Chrome.
-  Profile* profile_instance = reinterpret_cast<Profile*>(profile_);
-  if (google_util::IsGoogleDomainUrl(request->url().spec(),
-                                     google_util::ALLOW_SUBDOMAIN) &&
-      profile_instance && !profile_instance->IsOffTheRecord() &&
-      MetricsServiceHelper::IsMetricsReportingEnabled()) {
-    headers->SetHeader("X-Chrome-UMA-Enabled", "1");
-  }
-}