Update from https://crrev.com/303153

net/url_request/url_request.cc

Index: net/url_request/url_request.cc
diff --git a/net/url_request/url_request.cc b/net/url_request/url_request.cc
index 7ae48e86d7b224b3dd7052886e09c7924803697a..613d9bb67f02a1b6d6f524672403d284919ad2d0 100644
--- a/net/url_request/url_request.cc
+++ b/net/url_request/url_request.cc
@@ -13,6 +13,7 @@
 #include "base/memory/singleton.h"
 #include "base/message_loop/message_loop.h"
 #include "base/metrics/stats_counters.h"
+#include "base/profiler/scoped_tracker.h"
 #include "base/stl_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/synchronization/lock.h"
@@ -832,6 +833,11 @@ void URLRequest::NotifyReceivedRedirect(const RedirectInfo& redirect_info,
     RestartWithJob(job);
   } else if (delegate_) {
     OnCallToDelegate();
+
+    // TODO(vadimt): Remove ScopedTracker below once crbug.com/423948 is fixed.
+    tracked_objects::ScopedTracker tracking_profile(
+        FROM_HERE_WITH_EXPLICIT_FUNCTION(
+            "423948 URLRequest::Delegate::OnReceivedRedirect"));
     delegate_->OnReceivedRedirect(this, redirect_info, defer_redirect);
     // |this| may be have been destroyed here.
   }
@@ -840,7 +846,14 @@ void URLRequest::NotifyReceivedRedirect(const RedirectInfo& redirect_info,
 void URLRequest::NotifyBeforeNetworkStart(bool* defer) {
   if (delegate_ && !notified_before_network_start_) {
     OnCallToDelegate();
-    delegate_->OnBeforeNetworkStart(this, defer);
+    {
+      // TODO(vadimt): Remove ScopedTracker below once crbug.com/423948 is
+      // fixed.
+      tracked_objects::ScopedTracker tracking_profile(
+          FROM_HERE_WITH_EXPLICIT_FUNCTION(
+              "423948 URLRequest::Delegate::OnBeforeNetworkStart"));
+      delegate_->OnBeforeNetworkStart(this, defer);
+    }
     if (!*defer)
       OnCallToDelegateComplete();
     notified_before_network_start_ = true;
@@ -881,6 +894,11 @@ void URLRequest::NotifyResponseStarted() {
         NotifyRequestCompleted();
 
       OnCallToDelegate();
+      // TODO(vadimt): Remove ScopedTracker below once crbug.com/423948 is
+      // fixed.
+      tracked_objects::ScopedTracker tracking_profile(
+          FROM_HERE_WITH_EXPLICIT_FUNCTION(
+              "423948 URLRequest::Delegate::OnResponseStarted"));
       delegate_->OnResponseStarted(this);
       // Nothing may appear below this line as OnResponseStarted may delete
       // |this|.
@@ -1097,8 +1115,14 @@ void URLRequest::NotifyAuthRequiredComplete(
     case NetworkDelegate::AUTH_REQUIRED_RESPONSE_NO_ACTION:
       // Defer to the URLRequest::Delegate, since the NetworkDelegate
       // didn't take an action.
-      if (delegate_)
+      if (delegate_) {
+        // TODO(vadimt): Remove ScopedTracker below once crbug.com/423948 is
+        // fixed.
+        tracked_objects::ScopedTracker tracking_profile(
+            FROM_HERE_WITH_EXPLICIT_FUNCTION(
+                "423948 URLRequest::Delegate::OnAuthRequired"));
         delegate_->OnAuthRequired(this, auth_info.get());
+      }
       break;
 
     case NetworkDelegate::AUTH_REQUIRED_RESPONSE_SET_AUTH:
@@ -1117,14 +1141,24 @@ void URLRequest::NotifyAuthRequiredComplete(
 
 void URLRequest::NotifyCertificateRequested(
     SSLCertRequestInfo* cert_request_info) {
-  if (delegate_)
+  if (delegate_) {
+    // TODO(vadimt): Remove ScopedTracker below once crbug.com/423948 is fixed.
+    tracked_objects::ScopedTracker tracking_profile(
+        FROM_HERE_WITH_EXPLICIT_FUNCTION(
+            "423948 URLRequest::Delegate::OnCertificateRequested"));
     delegate_->OnCertificateRequested(this, cert_request_info);
+  }
 }
 
 void URLRequest::NotifySSLCertificateError(const SSLInfo& ssl_info,
                                            bool fatal) {
-  if (delegate_)
+  if (delegate_) {
+    // TODO(vadimt): Remove ScopedTracker below once crbug.com/423948 is fixed.
+    tracked_objects::ScopedTracker tracking_profile(
+        FROM_HERE_WITH_EXPLICIT_FUNCTION(
+            "423948 URLRequest::Delegate::OnSSLCertificateError"));
     delegate_->OnSSLCertificateError(this, ssl_info, fatal);
+  }
 }
 
 bool URLRequest::CanGetCookies(const CookieList& cookie_list) const {
@@ -1165,8 +1199,13 @@ void URLRequest::NotifyReadCompleted(int bytes_read) {
   if (bytes_read > 0 && !was_cached())
     NetworkChangeNotifier::NotifyDataReceived(*this, bytes_read);
 
-  if (delegate_)
+  if (delegate_) {
+    // TODO(vadimt): Remove ScopedTracker below once crbug.com/423948 is fixed.
+    tracked_objects::ScopedTracker tracking_profile(
+        FROM_HERE_WITH_EXPLICIT_FUNCTION(
+            "423948 URLRequest::Delegate::OnReadCompleted"));
     delegate_->OnReadCompleted(this, bytes_read);
+  }
 
   // Nothing below this line as OnReadCompleted may delete |this|.
 }