Moving the iOS directory to be remoting top level.

remoting/client/ios/app/host_collection_view_controller.h

-// 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.
-
-#ifndef REMOTING_CLIENT_IOS_APP_HOST_COLLECTION_VIEW_CONTOLLER_H_
-#define REMOTING_CLIENT_IOS_APP_HOST_COLLECTION_VIEW_CONTOLLER_H_
-
-#import <UIKit/UIKit.h>
-
-#import "ios/third_party/material_components_ios/src/components/Collections/src/MaterialCollections.h"
-#import "ios/third_party/material_components_ios/src/components/FlexibleHeader/src/MaterialFlexibleHeader.h"
-#import "remoting/client/ios/app/host_collection_view_cell.h"
-#import "remoting/client/ios/domain/host_info.h"
-
-// The host collection view controller delegate provides the data for available
-// hosts and receives selection events from the collection view controller.
-@protocol HostCollectionViewControllerDelegate<NSObject>
-
-// Notifies the delegate if a selection happens for the provided cell.
-// The delegate should run the completionBlock when processing for this event
-// has finished.
-@optional
-- (void)didSelectCell:(HostCollectionViewCell*)cell
-           completion:(void (^)())completionBlock;
-
-// The delegate should provide the HostInfo object for the given path if
-// available from the cache.
-- (HostInfo*)getHostAtIndexPath:(NSIndexPath*)path;
-
-// The delegate must provide the total number of hosts currently cached.
-- (NSInteger)getHostCount;
-
-@end
-
-@interface HostCollectionViewController : MDCCollectionViewController
-
-@property(weak, nonatomic) id<HostCollectionViewControllerDelegate> delegate;
-@property(nonatomic)
-    MDCFlexibleHeaderContainerViewController* flexHeaderContainerViewController;
-
-@end
-
-#endif  // REMOTING_CLIENT_IOS_APP_HOST_LIST_VIEW_CONTOLLER_H_