Reland "Add metrics for search engine promo and search widget"

chrome/browser/android/locale/locale_manager.h

 // Copyright 2017 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_ANDROID_LOCALE_LOCALE_MANAGER_H_
 #define CHROME_BROWSER_ANDROID_LOCALE_LOCALE_MANAGER_H_
 
 #include <jni.h>
 #include <string>
 
 #include "base/macros.h"
 
 // Provides access to the locale specific customizations on Android.
 class LocaleManager {
  public:
   static std::string GetYandexReferralID();
 
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(LocaleManager);
 };
 
+bool RegisterLocaleManager(JNIEnv* env);
+
 #endif  // CHROME_BROWSER_ANDROID_LOCALE_LOCALE_MANAGER_H_