[iOS Clean] Added dialogs UI support.

ios/clean/chrome/browser/ui/dialogs/dialog_view_controller.h

Index: ios/clean/chrome/browser/ui/dialogs/dialog_view_controller.h
diff --git a/ios/clean/chrome/browser/ui/dialogs/dialog_view_controller.h b/ios/clean/chrome/browser/ui/dialogs/dialog_view_controller.h
new file mode 100644
index 0000000000000000000000000000000000000000..214b79ce400e8f92e9a8881757d257549869050b
--- /dev/null
+++ b/ios/clean/chrome/browser/ui/dialogs/dialog_view_controller.h
@@ -0,0 +1,24 @@
+// 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 IOS_CLEAN_CHROME_BROWSER_UI_DIALOGS_DIALOG_VIEW_CONTROLLER_H_
+#define IOS_CLEAN_CHROME_BROWSER_UI_DIALOGS_DIALOG_VIEW_CONTROLLER_H_
+
+#import <UIKit/UIKit.h>
+
+#import "ios/clean/chrome/browser/ui/dialogs/dialog_consumer.h"
+
+@protocol DialogDismissalCommands;
+
+// Class used to display dialogs.

[marq (ping after 24h), 2017/06/14 10:52:15]

Is this expected to be subclassed?

[kkhorimoto, 2017/06/23 06:24:18]

No, I'll add a comment for that.  It should be more clear that only the
coordinator should be subclassed (now that there's a DialogCoordinator).

+@interface DialogViewController : UIAlertController<DialogConsumer>
+
+// Initializer for a dialog with |style| that uses |dispatcher| to manager its

[marq (ping after 24h), 2017/06/14 10:52:16]

mananger -> manage

[kkhorimoto, 2017/06/23 06:24:18]

Done.

+// dismissal.
+- (instancetype)initWithStyle:(UIAlertControllerStyle)style

[marq (ping after 24h), 2017/06/14 10:52:15]

Style should always be UIAlertControllerStyleAlert, right?

[kkhorimoto, 2017/06/23 06:24:18]

Nope, the dialog blocking confirmation is an action sheet on iPhones.

+                   dispatcher:(id<DialogDismissalCommands>)dispatcher;
+
+@end
+
+#endif  // IOS_CLEAN_CHROME_BROWSER_UI_DIALOGS_DIALOG_VIEW_CONTROLLER_H_