[ios] RootCoordinator and view controller.

ios/chrome/browser/root_coordinator.h

Index: ios/chrome/browser/root_coordinator.h
diff --git a/ios/chrome/browser/root_coordinator.h b/ios/chrome/browser/root_coordinator.h
deleted file mode 100644
index c9c6a8295078d82fdab092dc3b3960c479393632..0000000000000000000000000000000000000000
--- a/ios/chrome/browser/root_coordinator.h
+++ /dev/null
@@ -1,27 +0,0 @@
-// 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.
-
-#ifndef IOS_CHROME_BROWSER_ROOT_COORDINATOR_H_
-#define IOS_CHROME_BROWSER_ROOT_COORDINATOR_H_
-
-#import <UIKit/UIKit.h>
-
-#import "ios/chrome/browser/chrome_coordinator.h"
-
-// A coordinator specialization for the case where the coordinator is
-// creating and managing the root view controller for a UIWindow.
-
-@interface RootCoordinator : ChromeCoordinator
-
-- (nullable instancetype)initWithWindow:(nullable UIWindow*)window
-    NS_DESIGNATED_INITIALIZER;
-
-- (nullable instancetype)initWithBaseViewController:
-    (nullable UIViewController*)viewController NS_UNAVAILABLE;
-
-@property(weak, nonatomic, readonly, nullable) UIWindow* window;
-
-@end
-
-#endif  // IOS_CHROME_BROWSER_ROOT_COORDINATOR_H_