Add time from navigation_start to NTP LogEvent

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

Index: chrome/browser/ui/webui/ntp/ntp_user_data_logger.cc
diff --git a/chrome/browser/ui/webui/ntp/ntp_user_data_logger.cc b/chrome/browser/ui/webui/ntp/ntp_user_data_logger.cc
index dc53a4c6fb238fde4779eae33e8c627e81f0489c..f5d16daf172d5d540f3bad5dcc00213b72a4e3c6 100644
--- a/chrome/browser/ui/webui/ntp/ntp_user_data_logger.cc
+++ b/chrome/browser/ui/webui/ntp/ntp_user_data_logger.cc
@@ -7,6 +7,7 @@
 #include "base/metrics/histogram.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
+#include "base/time/time.h"
 #include "chrome/browser/search/most_visited_iframe_source.h"
 #include "chrome/browser/search/search.h"
 #include "chrome/common/search_urls.h"
@@ -127,7 +128,7 @@ void NTPUserDataLogger::EmitNtpStatistics() {
   }
 }
 
-void NTPUserDataLogger::LogEvent(NTPLoggingEventType event) {
+void NTPUserDataLogger::LogEvent(NTPLoggingEventType event, int64 time) {
   switch (event) {
     case NTP_SERVER_SIDE_SUGGESTION:
       has_server_side_suggestions_ = true;
@@ -236,5 +237,6 @@ NTPUserDataLogger::NTPUserDataLogger(content::WebContents* contents)
       number_of_thumbnail_errors_(0),
       number_of_gray_tile_fallbacks_(0),
       number_of_external_tile_fallbacks_(0),
-      number_of_mouseovers_(0) {
+      number_of_mouseovers_(0),
+      load_time_(0) {
 }