Revert "[iOS][Alert] Add alert controller to Showcase"

This reverts commit 2410dcb9.

Reason for revert: Bug 954134

Original change's description:
> [iOS][Alert] Add alert controller to Showcase
> 
> Bug: 951301, 951300
> Change-Id: If0af93103f0038ad35770cee09b94b455aeca92b
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1561109
> Commit-Queue: Javier Ernesto Flores Robles <javierrobles@chromium.org>
> Reviewed-by: edchin <edchin@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#652122}

TBR=edchin@chromium.org,javierrobles@chromium.org

Bug: 954134
Change-Id: I4f4d441cf3fa9ea5651a0b0bc01ef41e9bd0f277
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 951301, 951300
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1573639Reviewed-by: François Doray <fdoray@chromium.org>
Commit-Queue: François Doray <fdoray@chromium.org>
Cr-Commit-Position: refs/heads/master@{#652127}

ios/showcase/BUILD.gn

@@ -22,7 +22,6 @@ ios_app_bundle("showcase") {
 
 group("features") {
   deps = [
-    "//ios/showcase/alert",
     "//ios/showcase/bubble",
     "//ios/showcase/content_suggestions",
     "//ios/showcase/infobars",

ios/showcase/alert/BUILD.gn

-# Copyright 2019 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.
-
-source_set("alert") {
-  sources = [
-    "sc_alert_coordinator.h",
-    "sc_alert_coordinator.mm",
-  ]
-  deps = [
-    "//ios/chrome/browser/ui/alert_view_controller",
-    "//ios/showcase/common",
-  ]
-  libs = [ "UIKit.framework" ]
-  configs += [ "//build/config/compiler:enable_arc" ]
-}

ios/showcase/alert/sc_alert_coordinator.h

-// Copyright 2019 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_SHOWCASE_ALERT_SC_ALERT_COORDINATOR_H_
-#define IOS_SHOWCASE_ALERT_SC_ALERT_COORDINATOR_H_
-
-#import "ios/showcase/common/navigation_coordinator.h"
-
-@interface SCAlertCoordinator : NSObject <NavigationCoordinator>
-@end
-
-#endif  // IOS_SHOWCASE_ALERT_SC_ALERT_COORDINATOR_H_

ios/showcase/alert/sc_alert_coordinator.mm

-// Copyright 2019 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/showcase/alert/sc_alert_coordinator.h"
-
-#import "ios/chrome/browser/ui/alert_view_controller/alert_view_controller.h"
-
-#if !defined(__has_feature) || !__has_feature(objc_arc)
-#error "This file requires ARC support."
-#endif
-
-@interface SCAlertCoordinator ()
-@property(nonatomic, strong) UIViewController* containerViewController;
-@end
-
-@implementation SCAlertCoordinator
-
-@synthesize baseViewController = _baseViewController;
-
-- (void)start {
-  self.containerViewController = [[UIViewController alloc] init];
-  self.containerViewController.definesPresentationContext = YES;
-  self.containerViewController.title = @"Alert";
-
-  UIView* containerView = self.containerViewController.view;
-  containerView.backgroundColor = [UIColor whiteColor];
-
-  UIButton* alertButton = [UIButton buttonWithType:UIButtonTypeSystem];
-  [alertButton setTitle:@"alert()" forState:UIControlStateNormal];
-  [alertButton addTarget:self
-                  action:@selector(showAlert)
-        forControlEvents:UIControlEventTouchUpInside];
-
-  UIButton* promptButton = [UIButton buttonWithType:UIButtonTypeSystem];
-  [promptButton setTitle:@"prompt()" forState:UIControlStateNormal];
-  [promptButton addTarget:self
-                   action:@selector(showPrompt)
-         forControlEvents:UIControlEventTouchUpInside];
-
-  UIButton* confirmButton = [UIButton buttonWithType:UIButtonTypeSystem];
-  [confirmButton setTitle:@"confirm()" forState:UIControlStateNormal];
-  [confirmButton addTarget:self
-                    action:@selector(showConfirm)
-          forControlEvents:UIControlEventTouchUpInside];
-
-  UIButton* authButton = [UIButton buttonWithType:UIButtonTypeSystem];
-  [authButton setTitle:@"HTTP Auth" forState:UIControlStateNormal];
-  [authButton addTarget:self
-                 action:@selector(showHTTPAuth)
-       forControlEvents:UIControlEventTouchUpInside];
-
-  UIStackView* stack = [[UIStackView alloc] initWithArrangedSubviews:@[
-    alertButton, promptButton, confirmButton, authButton
-  ]];
-  stack.axis = UILayoutConstraintAxisVertical;
-  stack.spacing = 30;
-  stack.translatesAutoresizingMaskIntoConstraints = NO;
-  [containerView addSubview:stack];
-
-  [NSLayoutConstraint activateConstraints:@[
-    [stack.centerXAnchor constraintEqualToAnchor:containerView.centerXAnchor],
-    [stack.centerYAnchor constraintEqualToAnchor:containerView.centerYAnchor],
-  ]];
-  [self.baseViewController pushViewController:self.containerViewController
-                                     animated:YES];
-}
-
-- (void)showAlert {
-  AlertViewController* alert = [[AlertViewController alloc] init];
-  alert.title = @"chromium.org says";
-  alert.message = @"This is an alert message from a website.";
-  __weak __typeof(self) weakSelf = self;
-  AlertAction* action =
-      [AlertAction actionWithTitle:@"OK"
-                           handler:^(AlertAction* action) {
-                             [weakSelf.containerViewController
-                                 dismissViewControllerAnimated:YES
-                                                    completion:nil];
-                           }];
-  [alert addAction:action];
-  [self presentAlertViewController:alert];
-}
-
-- (void)showPrompt {
-  AlertViewController* alert = [[AlertViewController alloc] init];
-  alert.title = @"chromium.org says";
-  alert.message = @"This is a promp message from a website.";
-  [alert addTextFieldWithConfigurationHandler:^(UITextField* textField) {
-    textField.placeholder = @"placehorder";
-  }];
-  __weak __typeof(self) weakSelf = self;
-  AlertAction* OKAction =
-      [AlertAction actionWithTitle:@"OK"
-                           handler:^(AlertAction* action) {
-                             [weakSelf.containerViewController
-                                 dismissViewControllerAnimated:YES
-                                                    completion:nil];
-                           }];
-  [alert addAction:OKAction];
-  AlertAction* cancelAction =
-      [AlertAction actionWithTitle:@"Cancel"
-                           handler:^(AlertAction* action) {
-                             [weakSelf.containerViewController
-                                 dismissViewControllerAnimated:YES
-                                                    completion:nil];
-                           }];
-  [alert addAction:cancelAction];
-  [self presentAlertViewController:alert];
-}
-
-- (void)showConfirm {
-  AlertViewController* alert = [[AlertViewController alloc] init];
-  alert.title = @"chromium.org says";
-  alert.message = @"This is a confirm message from a website.";
-  __weak __typeof(self) weakSelf = self;
-  AlertAction* OKAction =
-      [AlertAction actionWithTitle:@"OK"
-                           handler:^(AlertAction* action) {
-                             [weakSelf.containerViewController
-                                 dismissViewControllerAnimated:YES
-                                                    completion:nil];
-                           }];
-  [alert addAction:OKAction];
-  AlertAction* cancelAction =
-      [AlertAction actionWithTitle:@"Cancel"
-                           handler:^(AlertAction* action) {
-                             [weakSelf.containerViewController
-                                 dismissViewControllerAnimated:YES
-                                                    completion:nil];
-                           }];
-  [alert addAction:cancelAction];
-  [self presentAlertViewController:alert];
-}
-
-- (void)showHTTPAuth {
-  AlertViewController* alert = [[AlertViewController alloc] init];
-  alert.title = @"Sign in";
-  alert.message =
-      @"https://www.chromium.org requires a username and a password.";
-  [alert addTextFieldWithConfigurationHandler:^(UITextField* textField) {
-    textField.placeholder = @"Username";
-  }];
-  [alert addTextFieldWithConfigurationHandler:^(UITextField* textField) {
-    textField.placeholder = @"Password";
-    textField.secureTextEntry = YES;
-  }];
-  __weak __typeof(self) weakSelf = self;
-  AlertAction* OKAction =
-      [AlertAction actionWithTitle:@"Sign In"
-                           handler:^(AlertAction* action) {
-                             [weakSelf.containerViewController
-                                 dismissViewControllerAnimated:YES
-                                                    completion:nil];
-                           }];
-  [alert addAction:OKAction];
-  AlertAction* cancelAction =
-      [AlertAction actionWithTitle:@"Cancel"
-                           handler:^(AlertAction* action) {
-                             [weakSelf.containerViewController
-                                 dismissViewControllerAnimated:YES
-                                                    completion:nil];
-                           }];
-  [alert addAction:cancelAction];
-  [self presentAlertViewController:alert];
-}
-
-- (void)presentAlertViewController:(AlertViewController*)alertViewController {
-  alertViewController.modalTransitionStyle =
-      UIModalTransitionStyleCrossDissolve;
-  alertViewController.modalPresentationStyle =
-      UIModalPresentationOverCurrentContext;
-  [self.containerViewController presentViewController:alertViewController
-                                             animated:true
-                                           completion:nil];
-}
-
-@end

ios/showcase/core/showcase_model.mm

@@ -112,11 +112,6 @@
       showcase::kClassForInstantiationKey : @"SCInfobarBannerCoordinator",
       showcase::kUseCaseKey : @"Infobar Banner",
     },
-    @{
-      showcase::kClassForDisplayKey : @"AlertController",
-      showcase::kClassForInstantiationKey : @"SCAlertCoordinator",
-      showcase::kUseCaseKey : @"Alert",
-    },
   ];
 }