[Android] Upstream ChromeNativePreferences as PrefServiceBridge

chrome/browser/android/preferences/pref_service_bridge.h

+// Copyright 2014 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_PREFERENCES_PREF_SERVICE_BRIDGE_H_
+#define CHROME_BROWSER_ANDROID_PREFERENCES_PREF_SERVICE_BRIDGE_H_
+
+#include <jni.h>
+#include <string>
+
+bool RegisterPrefServiceBridge(JNIEnv* env);
+
+// Use |locale| to create a language-region pair and language code to prepend to
+// the default accept languages. For Malay, we'll end up creating
+// "ms-MY,ms,en-US,en", and for Swiss-German, we will have
+// "de-CH,de-DE,de,en-US,en".
+void PrependToAcceptLanguagesIfNecessary(std::string locale,
+                                         std::string* accept_languages);
+
+#endif  // CHROME_BROWSER_ANDROID_PREFERENCES_PREF_SERVICE_BRIDGE_H_