Moving the iOS directory to be remoting top level.

remoting/client/ios/app/host_collection_view_controller.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.
-
-#if !defined(__has_feature) || !__has_feature(objc_arc)
-#error "This file requires ARC support."
-#endif
-
-#import "remoting/client/ios/app/host_collection_view_controller.h"
-
-#import "ios/third_party/material_components_ios/src/components/Ink/src/MaterialInk.h"
-#import "ios/third_party/material_components_ios/src/components/NavigationBar/src/MaterialNavigationBar.h"
-#import "ios/third_party/material_components_ios/src/components/ShadowElevations/src/MaterialShadowElevations.h"
-#import "ios/third_party/material_components_ios/src/components/ShadowLayer/src/MaterialShadowLayer.h"
-
-static NSString* const kReusableIdentifierItem =
-    @"remotingHostCollectionViewControllerItem";
-
-static CGFloat kHostCollectionViewControllerCellHeight = 70.f;
-static CGFloat kHostCollectionViewControllerDefaultHeaderHeight = 100.f;
-static CGFloat kHostCollectionViewControllerSmallHeaderHeight = 60.f;
-static UIColor* kBackgroundColor =
-    [UIColor colorWithRed:0.f green:0.67f blue:0.55f alpha:1.f];
-
-@interface HostCollectionViewController () {
-  MDCInkTouchController* _inkTouchController;
-}
-@end
-
-@implementation HostCollectionViewController
-
-@synthesize delegate = _delegate;
-@synthesize flexHeaderContainerViewController =
-    _flexHeaderContainerViewController;
-
-- (instancetype)initWithCollectionViewLayout:(UICollectionViewLayout*)layout {
-  self = [super initWithCollectionViewLayout:layout];
-  if (self) {
-    self.collectionView.backgroundColor = [UIColor whiteColor];
-    [self.collectionView registerClass:[HostCollectionViewCell class]
-            forCellWithReuseIdentifier:NSStringFromClass(
-                                           [HostCollectionViewCell class])];
-  }
-  return self;
-}
-
-#pragma mark - UIViewController
-
-- (void)viewDidLoad {
-  [super viewDidLoad];
-  self.styler.cellStyle = MDCCollectionViewCellStyleCard;
-  self.styler.cellLayoutType = MDCCollectionViewCellLayoutTypeGrid;
-  self.styler.gridPadding = 0;
-  self.styler.gridColumnCount = 1;
-}
-
-- (void)viewWillTransitionToSize:(CGSize)size
-       withTransitionCoordinator:
-           (id<UIViewControllerTransitionCoordinator>)coordinator {
-  [self.collectionView.collectionViewLayout invalidateLayout];
-}
-
-- (void)viewWillAppear:(BOOL)animated {
-  [super viewWillAppear:animated];
-  [self.collectionView.collectionViewLayout invalidateLayout];
-}
-
-#pragma mark - UICollectionViewDataSource
-
-- (NSInteger)collectionView:(UICollectionView*)collectionView
-     numberOfItemsInSection:(NSInteger)section {
-  return [_delegate getHostCount];
-}
-
-- (UICollectionViewCell*)collectionView:(UICollectionView*)collectionView
-                 cellForItemAtIndexPath:(NSIndexPath*)indexPath {
-  HostCollectionViewCell* cell =
-      [collectionView dequeueReusableCellWithReuseIdentifier:
-                          NSStringFromClass([HostCollectionViewCell class])
-                                                forIndexPath:indexPath];
-  HostInfo* host = [_delegate getHostAtIndexPath:indexPath];
-  if (host) {
-    [cell populateContentWithHostInfo:host];
-  }
-  return cell;
-}
-
-#pragma mark - UICollectionViewDelegate
-
-- (void)collectionView:(UICollectionView*)collectionView
-    didSelectItemAtIndexPath:(NSIndexPath*)indexPath {
-  [super collectionView:collectionView didSelectItemAtIndexPath:indexPath];
-  HostCollectionViewCell* cell = (HostCollectionViewCell*)[collectionView
-      cellForItemAtIndexPath:indexPath];
-  [_delegate didSelectCell:cell
-                completion:^{
-                }];
-}
-
-#pragma mark - MDCCollectionViewStylingDelegate
-
-- (CGFloat)collectionView:(UICollectionView*)collectionView
-    cellHeightAtIndexPath:(NSIndexPath*)indexPath {
-  return kHostCollectionViewControllerCellHeight;
-}
-
-#pragma mark - UIScrollViewDelegate
-
-- (void)scrollViewDidScroll:(UIScrollView*)scrollView {
-  [self.flexHeaderContainerViewController.headerViewController
-      scrollViewDidScroll:scrollView];
-}
-
-#pragma mark - Private
-
-- (UIView*)hostsHeaderView {
-  CGRect headerFrame =
-      _flexHeaderContainerViewController.headerViewController.headerView.bounds;
-  UIView* hostsHeaderView = [[UIView alloc] initWithFrame:headerFrame];
-  hostsHeaderView.backgroundColor = kBackgroundColor;
-  hostsHeaderView.layer.masksToBounds = YES;
-  hostsHeaderView.autoresizingMask =
-      (UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight);
-
-  _inkTouchController =
-      [[MDCInkTouchController alloc] initWithView:hostsHeaderView];
-  [_inkTouchController addInkView];
-
-  return hostsHeaderView;
-}
-
-- (void)setflexHeaderContainerViewController:
-    (MDCFlexibleHeaderContainerViewController*)
-        flexHeaderContainerViewController {
-  _flexHeaderContainerViewController = flexHeaderContainerViewController;
-  MDCFlexibleHeaderView* headerView =
-      _flexHeaderContainerViewController.headerViewController.headerView;
-  headerView.trackingScrollView = self.collectionView;
-  headerView.maximumHeight = kHostCollectionViewControllerDefaultHeaderHeight;
-  headerView.minimumHeight = kHostCollectionViewControllerSmallHeaderHeight;
-  [headerView addSubview:[self hostsHeaderView]];
-
-  // Use a custom shadow under the flexible header.
-  MDCShadowLayer* shadowLayer = [MDCShadowLayer layer];
-  [headerView setShadowLayer:shadowLayer
-      intensityDidChangeBlock:^(CALayer* layer, CGFloat intensity) {
-        CGFloat elevation = MDCShadowElevationAppBar * intensity;
-        [(MDCShadowLayer*)layer setElevation:elevation];
-      }];
-}
-
-@end