Add helper to open URL in new activity

chrome/browser/android/ntp/content_suggestions_notification_helper.cc

+// 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.
+
+#include "chrome/browser/android/ntp/content_suggestions_notification_helper.h"
+
+#include "base/android/jni_android.h"
+#include "base/android/jni_string.h"
+#include "jni/ContentSuggestionsNotificationHelper_jni.h"
+
+namespace ntp_snippets {
+
+void ContentSuggestionsNotificationHelper::OpenURL(const GURL& url) {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  Java_ContentSuggestionsNotificationHelper_openUrl(
+      env, base::android::ConvertUTF8ToJavaString(env, url.spec()));
+}
+
+}  // namespace ntp_snippets