Removed NativeAppsCollectionViewController and related code.

ios/chrome/browser/ui/settings/native_apps_collection_view_controller.mm

Index: ios/chrome/browser/ui/settings/native_apps_collection_view_controller.mm
diff --git a/ios/chrome/browser/ui/settings/native_apps_collection_view_controller.mm b/ios/chrome/browser/ui/settings/native_apps_collection_view_controller.mm
deleted file mode 100644
index 68602f5d12ed963218e85afbbdeed9b2cd38bc6d..0000000000000000000000000000000000000000
--- a/ios/chrome/browser/ui/settings/native_apps_collection_view_controller.mm
+++ /dev/null
@@ -1,405 +0,0 @@
-// Copyright 2015 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/chrome/browser/ui/settings/native_apps_collection_view_controller.h"
-#import "ios/chrome/browser/ui/settings/native_apps_collection_view_controller_private.h"
-
-#import <StoreKit/StoreKit.h>
-
-#include "base/logging.h"
-#import "base/mac/foundation_util.h"
-#include "base/memory/ptr_util.h"
-#include "base/metrics/histogram_macros.h"
-#include "base/metrics/user_metrics.h"
-#include "base/metrics/user_metrics_action.h"
-#include "base/strings/sys_string_conversions.h"
-#include "base/threading/sequenced_worker_pool.h"
-#include "components/image_fetcher/ios/ios_image_data_fetcher_wrapper.h"
-#import "ios/chrome/browser/installation_notifier.h"
-#import "ios/chrome/browser/ui/collection_view/cells/MDCCollectionViewCell+Chrome.h"
-#import "ios/chrome/browser/ui/collection_view/cells/collection_view_footer_item.h"
-#import "ios/chrome/browser/ui/collection_view/collection_view_model.h"
-#import "ios/chrome/browser/ui/colors/MDCPalette+CrAdditions.h"
-#import "ios/chrome/browser/ui/settings/cells/native_app_item.h"
-#import "ios/chrome/browser/ui/settings/settings_utils.h"
-#import "ios/chrome/common/string_util.h"
-#include "ios/chrome/grit/ios_strings.h"
-#import "ios/public/provider/chrome/browser/chrome_browser_provider.h"
-#import "ios/public/provider/chrome/browser/native_app_launcher/native_app_metadata.h"
-#import "ios/public/provider/chrome/browser/native_app_launcher/native_app_whitelist_manager.h"
-#import "ios/third_party/material_components_ios/src/components/Buttons/src/MaterialButtons.h"
-#include "ios/web/public/web_thread.h"
-#include "ui/base/l10n/l10n_util.h"
-#include "url/gurl.h"
-
-#if !defined(__has_feature) || !__has_feature(objc_arc)
-#error "This file requires ARC support."
-#endif
-
-const NSInteger kTagShift = 1000;
-
-namespace {
-
-typedef NS_ENUM(NSInteger, SectionIdentifier) {
-  SectionIdentifierLearnMore = kSectionIdentifierEnumZero,
-  SectionIdentifierApps,
-};
-
-typedef NS_ENUM(NSInteger, ItemType) {
-  ItemTypeApp = kItemTypeEnumZero,
-  ItemTypeLearnMore,
-};
-
-}  // namespace
-
-@interface NativeAppsCollectionViewController ()<
-    SKStoreProductViewControllerDelegate> {
-  std::unique_ptr<image_fetcher::IOSImageDataFetcherWrapper> _imageFetcher;
-  NSArray* _nativeAppsInSettings;
-  BOOL _userDidSomething;
-}
-
-// List of the native apps visible in Settings.
-@property(nonatomic, copy) NSArray* appsInSettings;
-
-// Delegate for App-Store-related operations.
-@property(nonatomic, weak) id<StoreKitLauncher> storeKitLauncher;
-
-// Sets up the list of visible apps based on |nativeAppWhitelistManager|, which
-// serves as datasource for this controller. Apps from
-// |nativeAppWhitelistManager| are stored in |_nativeAppsInSettings| and
-// |-reloadData| is sent to the receiver.
-- (void)configureWithNativeAppWhiteListManager:
-    (id<NativeAppWhitelistManager>)nativeAppWhitelistManager;
-
-// Returns a new Native App collection view item for the metadata at |index| in
-// |_nativeAppsInSettings|.
-- (CollectionViewItem*)nativeAppItemAtIndex:(NSUInteger)index;
-
-// Target method for the auto open in app switch.
-// Called when an auto-open-in-app switch is toggled.
-- (void)autoOpenInAppChanged:(UISwitch*)switchControl;
-
-// Called when an Install button is being tapped.
-- (void)installApp:(UIButton*)button;
-
-// Called when an app with the registered scheme is opened.
-- (void)appDidInstall:(NSNotification*)notification;
-
-// Returns the app at |index| in the list of visible apps.
-- (id<NativeAppMetadata>)nativeAppAtIndex:(NSUInteger)index;
-
-// Records a user action in UMA under NativeAppLauncher.Settings.
-// If this method is not called during the lifetime of the view,
-// |settings::kNativeAppsActionDidNothing| is recorded in UMA.
-- (void)recordUserAction:(settings::NativeAppsAction)action;
-
-@end
-
-@implementation NativeAppsCollectionViewController
-
-@synthesize storeKitLauncher = _storeKitLauncher;
-
-- (id)initWithURLRequestContextGetter:
-    (net::URLRequestContextGetter*)requestContextGetter {
-  self = [super initWithStyle:CollectionViewControllerStyleAppBar];
-  if (self) {
-    _imageFetcher = base::MakeUnique<image_fetcher::IOSImageDataFetcherWrapper>(
-        requestContextGetter, web::WebThread::GetBlockingPool());
-    base::RecordAction(base::UserMetricsAction("MobileGALOpenSettings"));
-    _storeKitLauncher = self;
-
-    [self loadModel];
-  }
-  return self;
-}
-
-- (void)dealloc {
-  [[InstallationNotifier sharedInstance] unregisterForNotifications:self];
-  if (!_userDidSomething)
-    [self recordUserAction:settings::kNativeAppsActionDidNothing];
-}
-
-#pragma mark - View lifecycle
-
-- (void)viewDidLoad {
-  self.title = l10n_util::GetNSString(IDS_IOS_GOOGLE_APPS_SM_SETTINGS);
-  [self configureWithNativeAppWhiteListManager:
-            ios::GetChromeBrowserProvider()->GetNativeAppWhitelistManager()];
-
-  [super viewDidLoad];
-}
-
-- (void)viewWillAppear:(BOOL)animated {
-  [super viewWillAppear:animated];
-  [[InstallationNotifier sharedInstance] checkNow];
-  [[NSNotificationCenter defaultCenter]
-      addObserver:self
-         selector:@selector(reloadData)
-             name:UIApplicationDidBecomeActiveNotification
-           object:nil];
-}
-
-- (void)viewDidDisappear:(BOOL)animated {
-  [super viewDidDisappear:animated];
-  [[NSNotificationCenter defaultCenter]
-      removeObserver:self
-                name:UIApplicationDidBecomeActiveNotification
-              object:nil];
-}
-
-#pragma mark - CollectionViewController
-
-- (void)loadModel {
-  [super loadModel];
-  CollectionViewModel* model = self.collectionViewModel;
-  NSUInteger appsCount = [_nativeAppsInSettings count];
-
-  [model addSectionWithIdentifier:SectionIdentifierLearnMore];
-  [model addItem:[self learnMoreItem]
-      toSectionWithIdentifier:SectionIdentifierLearnMore];
-
-  [model addSectionWithIdentifier:SectionIdentifierApps];
-
-  for (NSUInteger i = 0; i < appsCount; i++) {
-    [model addItem:[self nativeAppItemAtIndex:i]
-        toSectionWithIdentifier:SectionIdentifierApps];
-  }
-}
-
-- (UICollectionViewCell*)collectionView:(UICollectionView*)collectionView
-                 cellForItemAtIndexPath:(NSIndexPath*)indexPath {
-  UICollectionViewCell* cell =
-      [super collectionView:collectionView cellForItemAtIndexPath:indexPath];
-  if ([self.collectionViewModel
-          sectionIdentifierForSection:indexPath.section] ==
-      SectionIdentifierApps) {
-    NativeAppCell* appCell = base::mac::ObjCCastStrict<NativeAppCell>(cell);
-    [self configureNativeAppCell:appCell atIndexPath:indexPath];
-  }
-  return cell;
-}
-
-#pragma mark - MDCCollectionViewStylingDelegate
-
-- (CGFloat)collectionView:(nonnull UICollectionView*)collectionView
-    cellHeightAtIndexPath:(nonnull NSIndexPath*)indexPath {
-  CollectionViewItem* item =
-      [self.collectionViewModel itemAtIndexPath:indexPath];
-  switch (item.type) {
-    case ItemTypeLearnMore:
-      return [MDCCollectionViewCell
-          cr_preferredHeightForWidth:CGRectGetWidth(collectionView.bounds)
-                             forItem:item];
-    case ItemTypeApp:
-      return MDCCellDefaultOneLineWithAvatarHeight;
-    default:
-      return MDCCellDefaultOneLineHeight;
-  }
-}
-
-- (void)configureNativeAppCell:(NativeAppCell*)appCell
-                   atIndexPath:(NSIndexPath*)indexPath {
-  appCell.switchControl.tag = [self tagForIndexPath:indexPath];
-  [appCell.switchControl addTarget:self
-                            action:@selector(autoOpenInAppChanged:)
-                  forControlEvents:UIControlEventValueChanged];
-  appCell.installButton.tag = [self tagForIndexPath:indexPath];
-  [appCell.installButton addTarget:self
-                            action:@selector(installApp:)
-                  forControlEvents:UIControlEventTouchUpInside];
-  CollectionViewItem* item =
-      [self.collectionViewModel itemAtIndexPath:indexPath];
-  NativeAppItem* appItem = base::mac::ObjCCastStrict<NativeAppItem>(item);
-  if (!appItem.icon) {
-    // Fetch the real icon.
-    __weak NativeAppsCollectionViewController* weakSelf = self;
-    id<NativeAppMetadata> metadata = [self nativeAppAtIndex:indexPath.item];
-    [metadata fetchSmallIconWithImageFetcher:_imageFetcher.get()
-                             completionBlock:^(UIImage* image) {
-
-                               NativeAppsCollectionViewController* strongSelf =
-                                   weakSelf;
-                               if (!image || !strongSelf)
-                                 return;
-                               appItem.icon = image;
-                               [strongSelf.collectionView
-                                   reloadItemsAtIndexPaths:@[ indexPath ]];
-                             }];
-  }
-}
-
-- (CollectionViewItem*)learnMoreItem {
-  NSString* learnMoreText =
-      l10n_util::GetNSString(IDS_IOS_GOOGLE_APPS_SM_SECTION_HEADER);
-  CollectionViewFooterItem* learnMoreItem =
-      [[CollectionViewFooterItem alloc] initWithType:ItemTypeLearnMore];
-  learnMoreItem.text = learnMoreText;
-  return learnMoreItem;
-}
-
-#pragma mark - SKStoreProductViewControllerDelegate methods
-
-- (void)productViewControllerDidFinish:
-    (SKStoreProductViewController*)viewController {
-  [self dismissViewControllerAnimated:YES completion:nil];
-}
-
-#pragma mark - StoreKitLauncher methods
-
-- (void)openAppStore:(NSString*)appId {
-  // Reported crashes show that -openAppStore: had been called with
-  // a nil |appId|, but opening AppStore is meaningful only if the |appId| is
-  // not nil, so be defensive and early return if |appId| is nil.
-  if (![appId length])
-    return;
-  NSDictionary* product =
-      @{SKStoreProductParameterITunesItemIdentifier : appId};
-  SKStoreProductViewController* storeViewController =
-      [[SKStoreProductViewController alloc] init];
-  [storeViewController setDelegate:self];
-  [storeViewController loadProductWithParameters:product completionBlock:nil];
-  [self presentViewController:storeViewController animated:YES completion:nil];
-}
-
-#pragma mark - MDCCollectionViewStylingDelegate
-
-// MDCCollectionViewStylingDelegate protocol is implemented so that cells don't
-// display ink on touch.
-- (BOOL)collectionView:(nonnull UICollectionView*)collectionView
-    hidesInkViewAtIndexPath:(nonnull NSIndexPath*)indexPath {
-  return YES;
-}
-
-- (MDCCollectionViewCellStyle)collectionView:(UICollectionView*)collectionView
-                         cellStyleForSection:(NSInteger)section {
-  NSInteger sectionIdentifier =
-      [self.collectionViewModel sectionIdentifierForSection:section];
-  switch (sectionIdentifier) {
-    case SectionIdentifierLearnMore:
-      // Display the Learn More footer in the default style with no "card" UI
-      // and no section padding.
-      return MDCCollectionViewCellStyleDefault;
-    default:
-      return self.styler.cellStyle;
-  }
-}
-
-- (BOOL)collectionView:(UICollectionView*)collectionView
-    shouldHideItemBackgroundAtIndexPath:(NSIndexPath*)indexPath {
-  NSInteger sectionIdentifier =
-      [self.collectionViewModel sectionIdentifierForSection:indexPath.section];
-  switch (sectionIdentifier) {
-    case SectionIdentifierLearnMore:
-      // Display the Learn More footer without any background image or
-      // shadowing.
-      return YES;
-    default:
-      return NO;
-  }
-}
-#pragma mark - Private methods
-
-- (void)autoOpenInAppChanged:(UISwitch*)switchControl {
-  NSInteger index = [self indexPathForTag:switchControl.tag].item;
-  id<NativeAppMetadata> metadata = [self nativeAppAtIndex:index];
-  DCHECK([metadata isInstalled]);
-  BOOL autoOpenOn = switchControl.on;
-  metadata.shouldAutoOpenLinks = autoOpenOn;
-  [self recordUserAction:(autoOpenOn
-                              ? settings::kNativeAppsActionTurnedAutoOpenOn
-                              : settings::kNativeAppsActionTurnedAutoOpenOff)];
-}
-
-- (void)installApp:(UIButton*)button {
-  [self recordUserAction:settings::kNativeAppsActionClickedInstall];
-  NSInteger index = [self indexPathForTag:button.tag].item;
-  id<NativeAppMetadata> metadata = [self nativeAppAtIndex:index];
-  DCHECK(![metadata isInstalled]);
-  [metadata updateCounterWithAppInstallation];
-
-  // Register to get a notification when the app is installed.
-  [[InstallationNotifier sharedInstance]
-      registerForInstallationNotifications:self
-                              withSelector:@selector(appDidInstall:)
-                                 forScheme:[metadata anyScheme]];
-  [self.storeKitLauncher openAppStore:[metadata appId]];
-}
-
-- (void)appDidInstall:(NSNotification*)notification {
-  // The name of the notification is the scheme of the new app installed.
-  GURL url(base::SysNSStringToUTF8([notification name]) + ":");
-  DCHECK(url.is_valid());
-  NSUInteger matchingAppIndex = [_nativeAppsInSettings
-      indexOfObjectPassingTest:^(id obj, NSUInteger idx, BOOL* stop) {
-        id<NativeAppMetadata> metadata =
-            static_cast<id<NativeAppMetadata>>(obj);
-        return [metadata canOpenURL:url];
-      }];
-  [[self nativeAppAtIndex:matchingAppIndex] setShouldAutoOpenLinks:YES];
-  [self reloadData];
-}
-
-- (void)configureWithNativeAppWhiteListManager:
-    (id<NativeAppWhitelistManager>)nativeAppWhitelistManager {
-  NSArray* allApps = [nativeAppWhitelistManager
-      filteredAppsUsingBlock:^(const id<NativeAppMetadata> app, BOOL* stop) {
-        return [app isGoogleOwnedApp];
-      }];
-  [self setAppsInSettings:allApps];
-  [self reloadData];
-}
-
-- (id<NativeAppMetadata>)nativeAppAtIndex:(NSUInteger)index {
-  id<NativeAppMetadata> metadata = [_nativeAppsInSettings objectAtIndex:index];
-  DCHECK([metadata conformsToProtocol:@protocol(NativeAppMetadata)]);
-  return metadata;
-}
-
-- (void)recordUserAction:(settings::NativeAppsAction)action {
-  _userDidSomething = YES;
-  UMA_HISTOGRAM_ENUMERATION("NativeAppLauncher.Settings", action,
-                            settings::kNativeAppsActionCount);
-}
-
-- (CollectionViewItem*)nativeAppItemAtIndex:(NSUInteger)index {
-  id<NativeAppMetadata> metadata = [self nativeAppAtIndex:index];
-  // Determine the state of the cell.
-  NativeAppItemState state;
-  if ([metadata isInstalled]) {
-    state = [metadata shouldAutoOpenLinks] ? NativeAppItemSwitchOn
-                                           : NativeAppItemSwitchOff;
-  } else {
-    state = NativeAppItemInstall;
-  }
-  NativeAppItem* appItem = [[NativeAppItem alloc] initWithType:ItemTypeApp];
-  appItem.name = [metadata appName];
-  appItem.state = state;
-  return appItem;
-}
-
-- (NSArray*)appsInSettings {
-  return _nativeAppsInSettings;
-}
-
-- (void)setAppsInSettings:(NSArray*)apps {
-  _nativeAppsInSettings = [apps copy];
-}
-
-- (NSInteger)tagForIndexPath:(NSIndexPath*)indexPath {
-  DCHECK(indexPath.section ==
-         [self.collectionViewModel
-             sectionForSectionIdentifier:SectionIdentifierApps]);
-  return indexPath.item + kTagShift;
-}
-
-- (NSIndexPath*)indexPathForTag:(NSInteger)shiftedTag {
-  NSInteger unshiftedTag = shiftedTag - kTagShift;
-  return [NSIndexPath
-      indexPathForItem:unshiftedTag
-             inSection:[self.collectionViewModel
-                           sectionForSectionIdentifier:SectionIdentifierApps]];
-}
-
-@end