Remove WebUI NTP on Android.

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

-// 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.
-
-#include "chrome/browser/ui/webui/ntp/android/navigation_handler.h"
-
-#include "base/bind.h"
-#include "base/logging.h"
-#include "base/metrics/histogram.h"
-#include "base/values.h"
-#include "chrome/browser/google/google_util.h"
-#include "chrome/common/url_constants.h"
-#include "content/public/browser/navigation_entry.h"
-#include "content/public/browser/user_metrics.h"
-#include "content/public/browser/web_contents.h"
-#include "content/public/browser/web_ui.h"
-#include "content/public/common/page_transition_types.h"
-
-using base::UserMetricsAction;
-
-NavigationHandler::NavigationHandler() {}
-
-NavigationHandler::~NavigationHandler() {}
-
-void NavigationHandler::RegisterMessages() {
-  web_ui()->RegisterMessageCallback(
-      "openedMostVisited",
-      base::Bind(&NavigationHandler::HandleOpenedMostVisited,
-                 base::Unretained(this)));
-  web_ui()->RegisterMessageCallback(
-      "openedRecentlyClosed",
-      base::Bind(&NavigationHandler::HandleOpenedRecentlyClosed,
-                 base::Unretained(this)));
-  web_ui()->RegisterMessageCallback(
-      "openedBookmark",
-      base::Bind(&NavigationHandler::HandleOpenedBookmark,
-                 base::Unretained(this)));
-  web_ui()->RegisterMessageCallback(
-      "openedForeignSession",
-      base::Bind(&NavigationHandler::HandleOpenedForeignSession,
-                 base::Unretained(this)));
-}
-
-void NavigationHandler::HandleOpenedMostVisited(const base::ListValue* args) {
-  content::RecordAction(UserMetricsAction("MobileNTPMostVisited"));
-  RecordAction(ACTION_OPENED_MOST_VISITED_ENTRY);
-}
-
-void NavigationHandler::HandleOpenedRecentlyClosed(
-    const base::ListValue* args) {
-  content::RecordAction(UserMetricsAction("MobileNTPRecentlyClosed"));
-  RecordAction(ACTION_OPENED_RECENTLY_CLOSED_ENTRY);
-}
-
-void NavigationHandler::HandleOpenedBookmark(const base::ListValue* args) {
-  content::RecordAction(UserMetricsAction("MobileNTPBookmark"));
-  RecordAction(ACTION_OPENED_BOOKMARK);
-}
-
-void NavigationHandler::HandleOpenedForeignSession(
-    const base::ListValue* args) {
-  content::RecordAction(UserMetricsAction("MobileNTPForeignSession"));
-  RecordAction(ACTION_OPENED_FOREIGN_SESSION);
-}
-
-// static
-void NavigationHandler::RecordAction(Action action) {
-  UMA_HISTOGRAM_ENUMERATION("NewTabPage.ActionAndroid", action, NUM_ACTIONS);
-}