[ImportantSites] JNI bindings for CBD filtering and Important Sites.

chrome/browser/android/preferences/important_sites_util.h

+// Copyright 2016 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_IMPORTANT_SITES_UTIL_H_
+#define CHROME_BROWSER_ANDROID_PREFERENCES_IMPORTANT_SITES_UTIL_H_
+
+#include <string>
+#include <vector>
+
+#include "base/macros.h"
+
+class Profile;
+
+class ImportantSitesUtil {
+ public:
+  // This returns the top |<=max_results| important registerable
+  // domains. This uses site engagement and notifications to generate the list.
+  // |max_results| is assumed to be small.
+  // See net/base/registry_controlled_domains/registry_controlled_domain.h for
+  // more details on registrable domains and the current list of effective
+  // eTLDs.
+  static std::vector<std::string> GetImportantRegisterableDomains(
+      Profile* profile,
+      size_t max_results);
+
+ private:
+  DISALLOW_IMPLICIT_CONSTRUCTORS(ImportantSitesUtil);
+};
+
+#endif  // CHROME_BROWSER_ANDROID_PREFERENCES_IMPORTANT_SITES_UTIL_H_