[Crash Reporting] Only upload Chrome crash reports over unmetered networks.

components/minidump_uploader/android/java/src/org/chromium/components/minidump_uploader/util/NetworkPermissionUtil.java

+// 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.
+
+package org.chromium.components.minidump_uploader.util;
+
+import android.net.ConnectivityManager;
+import android.net.NetworkInfo;
+
+/**
+ * A container for determining whether it's ok to upload crash reports over the currently active
+ * network.
+ */
+public class NetworkPermissionUtil {
+    public static boolean isNetworkUnmetered(ConnectivityManager connectivityManager) {
+        NetworkInfo networkInfo = connectivityManager.getActiveNetworkInfo();
+        if (networkInfo == null || !networkInfo.isConnected()) return false;
+        return !connectivityManager.isActiveNetworkMetered();
+    }
+}