Roll Chrome into Mojo.

net/url_request/url_fetcher_core.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/url_request/url_fetcher_core.h"
 
 #include <stdint.h>
 
 #include "base/bind.h"
 #include "base/logging.h"
@@ skipping 913 matching lines @@
 }
 
 void URLFetcherCore::InformDelegateUploadProgressInDelegateThread(
     int64 current, int64 total) {
   DCHECK(delegate_task_runner_->BelongsToCurrentThread());
   if (delegate_)
     delegate_->OnURLFetchUploadProgress(fetcher_, current, total);
 }
 
 void URLFetcherCore::InformDelegateDownloadProgress() {
+  // TODO(vadimt): Remove ScopedTracker below once crbug.com/423948 is fixed.
+  tracked_objects::ScopedTracker tracking_profile1(
+      FROM_HERE_WITH_EXPLICIT_FUNCTION(
+          "423948 URLFetcherCore::InformDelegateDownloadProgress1"));
+
   DCHECK(network_task_runner_->BelongsToCurrentThread());
+
+  // TODO(vadimt): Remove ScopedTracker below once crbug.com/423948 is fixed.
+  tracked_objects::ScopedTracker tracking_profile2(
+      FROM_HERE_WITH_EXPLICIT_FUNCTION(
+          "423948 URLFetcherCore::InformDelegateDownloadProgress2"));
+
   delegate_task_runner_->PostTask(
       FROM_HERE,
       base::Bind(
           &URLFetcherCore::InformDelegateDownloadProgressInDelegateThread,
           this, current_response_bytes_, total_response_bytes_));
 }
 
 void URLFetcherCore::InformDelegateDownloadProgressInDelegateThread(
     int64 current, int64 total) {
   DCHECK(delegate_task_runner_->BelongsToCurrentThread());
   if (delegate_)
     delegate_->OnURLFetchDownloadProgress(fetcher_, current, total);
 }
 
 }  // namespace net