Update base/timer.h code to pass through Location from call sites.

chrome/browser/ui/webui/ntp/new_tab_ui.cc

 // Copyright (c) 2011 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 "build/build_config.h"
 
 #include "chrome/browser/ui/webui/ntp/new_tab_ui.h"
 
 #include <set>
 
@@ skipping 260 matching lines @@
     int load_time_ms = static_cast<int>(load_time.InMilliseconds());
     NotificationService::current()->Notify(
         chrome::NOTIFICATION_INITIAL_NEW_TAB_UI_LOAD,
         Source<Profile>(GetProfile()),
         Details<int>(&load_time_ms));
     UMA_HISTOGRAM_TIMES("NewTabUI load", load_time);
   } else {
     // Not enough quiet time has elapsed.
     // Some more paints must've occurred since we set the timeout.
     // Wait some more.
-    timer_.Start(base::TimeDelta::FromMilliseconds(kTimeoutMs), this,
+    timer_.Start(FROM_HERE, base::TimeDelta::FromMilliseconds(kTimeoutMs), this,
                  &NewTabUI::PaintTimeout);
   }
 }
 
 void NewTabUI::StartTimingPaint(RenderViewHost* render_view_host) {
   start_ = base::TimeTicks::Now();
   last_paint_ = start_;
   registrar_.Add(this, content::NOTIFICATION_RENDER_WIDGET_HOST_DID_PAINT,
       Source<RenderWidgetHost>(render_view_host));
-  timer_.Start(base::TimeDelta::FromMilliseconds(kTimeoutMs), this,
+  timer_.Start(FROM_HERE, base::TimeDelta::FromMilliseconds(kTimeoutMs), this,
                &NewTabUI::PaintTimeout);
 
 }
 void NewTabUI::RenderViewCreated(RenderViewHost* render_view_host) {
   StartTimingPaint(render_view_host);
 }
 
 void NewTabUI::RenderViewReused(RenderViewHost* render_view_host) {
   StartTimingPaint(render_view_host);
 }
@@ skipping 162 matching lines @@
   SendResponse(request_id, html_bytes);
 }
 
 std::string NewTabUI::NewTabHTMLSource::GetMimeType(const std::string&) const {
   return "text/html";
 }
 
 bool NewTabUI::NewTabHTMLSource::ShouldReplaceExistingSource() const {
   return false;
 }