Implement kiosk multiple apps feature.

extensions/common/manifest_handlers/kiosk_secondary_apps_info_unittest.cc

+// Copyright (c) 2015 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 "extensions/common/manifest_constants.h"
+#include "extensions/common/manifest_handlers/kiosk_secondary_apps_info.h"
+#include "extensions/common/manifest_test.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace extensions {
+
+using KioskSecondaryAppsInfoManifestTest = ManifestTest;
+
+TEST_F(KioskSecondaryAppsInfoManifestTest, NoSecondaryApps) {
+  scoped_refptr<Extension> extension(
+      LoadAndExpectSuccess("kiosk_secondary_app_no_secondary_app.json"));
+  EXPECT_FALSE(KioskSecondaryAppsInfo::HaveSecondaryApps(extension.get()));
+}
+
+TEST_F(KioskSecondaryAppsInfoManifestTest, MultipleSecondaryApps) {
+  scoped_refptr<Extension> extension(
+      LoadAndExpectSuccess("kiosk_secondary_app_multi_apps.json"));
+  EXPECT_TRUE(KioskSecondaryAppsInfo::HaveSecondaryApps(extension.get()));
+  KioskSecondaryAppsInfo* info = KioskSecondaryAppsInfo::Get(extension.get());
+  EXPECT_EQ(2u, info->ids.size());
+  const char kSecondaryAppId1[] = "ihplaomghjbeafnpnjkhppmfpnmdihgd";
+  const char kSecondaryAppId2[] = "fiehokkcgaojmbhfhlpiheggjhaedjoc";
+  EXPECT_TRUE(kSecondaryAppId1 == info->ids[0] ||
+              kSecondaryAppId1 == info->ids[1]);
+  EXPECT_TRUE(kSecondaryAppId2 == info->ids[0] ||
+              kSecondaryAppId2 == info->ids[1]);

[not at google - send to devlin, 2015/08/26 17:53:59]

This doesn't test the case where they're the same. I think there is some gtest
helper which compares lists in an arbitrary order.

[jennyz, 2015/08/28 18:24:08]

I didn't find the helper function for comparing two lists in an arbitrary order,
so I just use std::sort and std::equal to implement it.

+}
+
+}  // namespace extensions