Add time from navigation_start to NTP LogEvent

chrome/browser/ui/search/search_tab_helper.cc

 // Copyright 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 "chrome/browser/ui/search/search_tab_helper.h"
 
 #include <set>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/metrics/histogram.h"
@@ skipping 460 matching lines @@
   DCHECK(!url.is_empty());
   if (instant_service_)
     instant_service_->UndoMostVisitedDeletion(url);
 }
 
 void SearchTabHelper::OnUndoAllMostVisitedDeletions() {
   if (instant_service_)
     instant_service_->UndoAllMostVisitedDeletions();
 }
 
-void SearchTabHelper::OnLogEvent(NTPLoggingEventType event) {
+void SearchTabHelper::OnLogEvent(NTPLoggingEventType event,
+                                 base::TimeDelta time) {
 // TODO(kmadhusu): Move platform specific code from here and get rid of #ifdef.
 #if !defined(OS_ANDROID)
-  NTPUserDataLogger::GetOrCreateFromWebContents(
-      web_contents())->LogEvent(event);
+  NTPUserDataLogger::GetOrCreateFromWebContents(web_contents())
+      ->LogEvent(event, time);
 #endif
 }
 
 void SearchTabHelper::OnLogMostVisitedImpression(
     int position, const base::string16& provider) {
 // TODO(kmadhusu): Move platform specific code from here and get rid of #ifdef.
 #if !defined(OS_ANDROID)
   NTPUserDataLogger::GetOrCreateFromWebContents(
       web_contents())->LogMostVisitedImpression(position, provider);
 #endif
@@ skipping 94 matching lines @@
 
 bool SearchTabHelper::IsInputInProgress() const {
   OmniboxView* omnibox = GetOmniboxView();
   return !model_.mode().is_ntp() && omnibox &&
       omnibox->model()->focus_state() == OMNIBOX_FOCUS_VISIBLE;
 }
 
 OmniboxView* SearchTabHelper::GetOmniboxView() const {
   return delegate_ ? delegate_->GetOmniboxView() : NULL;
 }