Kill NewTabPage.NumberOfMouseOvers.

chrome/browser/ui/webui/metrics_handler.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 "chrome/browser/ui/webui/metrics_handler.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
@@ skipping 18 matching lines @@
   web_ui()->RegisterMessageCallback(
       "metricsHandler:recordAction",
       base::Bind(&MetricsHandler::HandleRecordAction, base::Unretained(this)));
   web_ui()->RegisterMessageCallback(
       "metricsHandler:recordInHistogram",
       base::Bind(&MetricsHandler::HandleRecordInHistogram,
                  base::Unretained(this)));
   web_ui()->RegisterMessageCallback(
       "metricsHandler:logEventTime",
       base::Bind(&MetricsHandler::HandleLogEventTime, base::Unretained(this)));
-  web_ui()->RegisterMessageCallback(
-      "metricsHandler:logMouseover",
-      base::Bind(&MetricsHandler::HandleLogMouseover, base::Unretained(this)));
 }
 
 void MetricsHandler::HandleRecordAction(const base::ListValue* args) {
   std::string string_action = base::UTF16ToUTF8(ExtractStringValue(args));
   content::RecordComputedAction(string_action);
 }
 
 void MetricsHandler::HandleRecordInHistogram(const base::ListValue* args) {
   std::string histogram_name;
   double value;
@@ skipping 47 matching lines @@
     UMA_HISTOGRAM_TIMES("Tab.NewTabDOMContentLoaded", duration);
   } else if (event_name == "Tab.NewTabOnload") {
     UMA_HISTOGRAM_TIMES("Tab.NewTabOnload", duration);
     // The new tab page has finished loading; reset it.
     CoreTabHelper* core_tab_helper = CoreTabHelper::FromWebContents(tab);
     core_tab_helper->set_new_tab_start_time(base::TimeTicks());
   } else {
     NOTREACHED();
   }
 }
-
-void MetricsHandler::HandleLogMouseover(const base::ListValue* args) {
-#if !defined(OS_ANDROID)
-  // Android uses native UI for NTP.
-  NTPUserDataLogger::GetOrCreateFromWebContents(
-    web_ui()->GetWebContents())->LogEvent(NTP_MOUSEOVER,
-                                          base::TimeDelta::FromMilliseconds(0));
-#endif  // !defined(OS_ANDROID)
-}