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

chrome/browser/chromeos/login/wizard_controller.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 "chrome/browser/chromeos/login/wizard_controller.h"
 
 #include <gdk/gdk.h>
 #include <signal.h>
 #include <sys/types.h>
 
@@ skipping 484 matching lines @@
 
   smooth_show_timer_.Stop();
 
   if (current_screen_)
     oobe_display_->HideScreen(current_screen_);
 
   current_screen_ = new_current;
 
   if (use_smoothing) {
     smooth_show_timer_.Start(
+        FROM_HERE,
         base::TimeDelta::FromMilliseconds(kShowDelayMs),
         this,
         &WizardController::ShowCurrentScreen);
   } else {
     ShowCurrentScreen();
   }
 }
 
 void WizardController::SetStatusAreaVisible(bool visible) {
   host_->SetStatusAreaVisible(visible);
@@ skipping 188 matching lines @@
 
 bool WizardController::usage_statistics_reporting() const {
   return usage_statistics_reporting_;
 }
 
 void WizardController::SetZeroDelays() {
   kShowDelayMs = 0;
 }
 
 }  // namespace chromeos