chromeos: Move ownership of ash VPN provider list from chrome into ash

ash/common/system/chromeos/network/vpn_delegate_unittest.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 "ash/common/system/chromeos/network/vpn_delegate.h"
+
+#include <algorithm>
+#include <vector>
+
+#include "base/macros.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace ash {
+
+namespace {
+
+class TestVpnDelegate : public VPNDelegate {
+ public:
+  TestVpnDelegate() {}
+  ~TestVpnDelegate() override {}
+
+  // VPNDelegate:
+  void ShowAddPage(const VPNProvider::Key& key) override {}
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(TestVpnDelegate);
+};
+
+}  // namespace
+
+using VpnDelegateTest = testing::Test;
+
+TEST_F(VpnDelegateTest, BuiltInProvider) {
+  TestVpnDelegate delegate;
+
+  // The VPN list should only contain the built-in provider.
+  ASSERT_EQ(1u, delegate.vpn_providers().size());
+  VPNProvider provider = delegate.vpn_providers()[0];
+  EXPECT_FALSE(provider.key.third_party);
+  EXPECT_TRUE(provider.key.extension_id.empty());
+}
+
+TEST_F(VpnDelegateTest, ThirdPartyProviders) {
+  TestVpnDelegate delegate;
+
+  // The VPN list should only contain the built-in provider.
+  EXPECT_EQ(1u, delegate.vpn_providers().size());
+
+  // Add some third party (extension-backed) providers.
+  VPNProvider::Key key1("extension_id1");
+  VPNProvider provider1(key1, "name1");
+  VPNProvider::Key key2("extension_id2");
+  VPNProvider provider2(key2, "name2");
+  std::vector<VPNProvider> third_party_providers = {provider1, provider2};
+  delegate.SetThirdPartyVpnProviders(third_party_providers);
+
+  // List contains the extension-backed providers. Order doesn't matter.
+  std::vector<VPNProvider> providers = delegate.vpn_providers();
+  EXPECT_EQ(3u, providers.size());
+  EXPECT_EQ(1u, std::count(providers.begin(), providers.end(), provider1));
+  EXPECT_EQ(1u, std::count(providers.begin(), providers.end(), provider2));
+}
+
+}  // namespace ash