Remove WebUI NTP on Android.

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
-  };
-
-  static void RecordAction(Action action);
-
-  DISALLOW_COPY_AND_ASSIGN(NavigationHandler);
-};
-
-#endif  // CHROME_BROWSER_UI_WEBUI_NTP_ANDROID_NAVIGATION_HANDLER_H_