Update UMA stat code for Android NTP.

chrome/browser/ui/webui/ntp/android/navigation_handler.h

 // Copyright 2013 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.
 
 #ifndef CHROME_BROWSER_UI_WEBUI_NTP_ANDROID_NAVIGATION_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_NTP_ANDROID_NAVIGATION_HANDLER_H_
 
 #include "base/compiler_specific.h"
+#include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/web_ui_message_handler.h"
 
 namespace base {
 class ListValue;
 }
 
 // Records a UMA stat ("NewTabPage.ActionAndroid") for the action the user takes
 // to navigate away from the NTP.
 class NavigationHandler : public content::WebUIMessageHandler {
  public:
   NavigationHandler();
   virtual ~NavigationHandler();
 
   // WebUIMessageHandler implementation.
   virtual void RegisterMessages() OVERRIDE;
 
   // Callback for "openedMostVisited".
   void HandleOpenedMostVisited(const base::ListValue* args);
 
   // Callback for "openedRecentlyClosed".
   void HandleOpenedRecentlyClosed(const base::ListValue* args);
 
   // Callback for "openedBookmark".
   void HandleOpenedBookmark(const base::ListValue* args);
 
   // Callback for "openedForeignSession".
   void HandleOpenedForeignSession(const base::ListValue* args);
 
+  static void RecordActionForNavigation(const content::NavigationEntry& entry);
+
  private:
   // Possible actions taken by the user on the NTP. This enum is also defined in
   // histograms.xml. WARNING: these values must stay in sync with histograms.xml
   // and new actions can be added only at the end of the enum.
   enum Action {
     // User performed a search using the omnibox
     ACTION_SEARCHED_USING_OMNIBOX = 0,
     // User navigated to Google search homepage using the omnibox
     ACTION_NAVIGATED_TO_GOOGLE_HOMEPAGE = 1,
     // User navigated to any other page using the omnibox
     ACTION_NAVIGATED_USING_OMNIBOX = 2,
     // User opened a most visited page
     ACTION_OPENED_MOST_VISITED_ENTRY = 3,
     // User opened a recently closed tab
     ACTION_OPENED_RECENTLY_CLOSED_ENTRY = 4,
     // User opened a bookmark
     ACTION_OPENED_BOOKMARK = 5,
     // User opened a foreign session (from other devices section)
     ACTION_OPENED_FOREIGN_SESSION = 6,
     // The number of possible actions
     NUM_ACTIONS = 7
   };
 
-  void RecordAction(Action action);
+  static void RecordAction(Action action);
 
   DISALLOW_COPY_AND_ASSIGN(NavigationHandler);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_NTP_ANDROID_NAVIGATION_HANDLER_H_