[ios] RootCoordinator and view controller.

ios/clean/chrome/browser/ui/root/root_coordinator_unittest.mm

+// 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.
+
+#import "ios/clean/chrome/browser/ui/root/root_coordinator.h"
+
+#import "ios/clean/chrome/browser/url_opening.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
+namespace {
+
+// Tests that RootCoordinator conforms to the URLOpening protocol.
+TEST(RootCoordinatorTest, TestConformsToURLOpening) {
+  EXPECT_TRUE([RootCoordinator conformsToProtocol:@protocol(URLOpening)]);
+}
+
+}  // namespace