Move web modal dialog manager files into the constrained_window component.

chrome/browser/ui/views/native_web_contents_modal_dialog_manager_views.h

-// Copyright 2016 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 CHROME_BROWSER_UI_VIEWS_NATIVE_WEB_CONTENTS_MODAL_DIALOG_MANAGER_VIEWS_H_
-#define CHROME_BROWSER_UI_VIEWS_NATIVE_WEB_CONTENTS_MODAL_DIALOG_MANAGER_VIEWS_H_
-
-#include <set>
-
-#include "base/macros.h"
-#include "components/web_modal/modal_dialog_host.h"
-#include "components/web_modal/single_web_contents_dialog_manager.h"
-#include "ui/gfx/native_widget_types.h"
-#include "ui/views/widget/widget_observer.h"
-
-namespace views {
-class Widget;
-}
-
-// Class for parenting a tab-modal views dialog off of a views browser.
-class NativeWebContentsModalDialogManagerViews
-    : public web_modal::SingleWebContentsDialogManager,
-      public web_modal::ModalDialogHostObserver,
-      public views::WidgetObserver {
- public:
-  NativeWebContentsModalDialogManagerViews(
-      gfx::NativeWindow dialog,
-      web_modal::SingleWebContentsDialogManagerDelegate* native_delegate);
-
-  ~NativeWebContentsModalDialogManagerViews() override;
-
-  // Sets up this object to manage the |dialog_|. Registers for closing events
-  // in order to notify the delegate.
-  void ManageDialog();
-
-  // web_modal::SingleWebContentsDialogManager:
-  void Show() override;
-  void Hide() override;
-  void Close() override;
-  void Focus() override;
-  void Pulse() override;
-
-  // web_modal::ModalDialogHostObserver:
-  void OnPositionRequiresUpdate() override;
-  void OnHostDestroying() override;
-
-  // views::WidgetObserver:
-
-  // NOTE(wittman): OnWidgetClosing is overriden to ensure that, when the widget
-  // is explicitly closed, the destruction occurs within the same call
-  // stack. This avoids event races that lead to non-deterministic destruction
-  // ordering in e.g. the print preview dialog. OnWidgetDestroying is overridden
-  // because OnWidgetClosing is *only* invoked on explicit close, not when the
-  // widget is implicitly destroyed due to its parent being closed. This
-  // situation occurs with app windows.  WidgetClosing removes the observer, so
-  // only one of these two functions is ever invoked for a given widget.
-  void OnWidgetClosing(views::Widget* widget) override;
-  void OnWidgetDestroying(views::Widget* widget) override;
-  void HostChanged(web_modal::WebContentsModalDialogHost* new_host) override;
-  gfx::NativeWindow dialog() override;
-
- private:
-  static views::Widget* GetWidget(gfx::NativeWindow dialog);
-  void WidgetClosing(views::Widget* widget);
-
-  web_modal::SingleWebContentsDialogManagerDelegate* native_delegate_;
-  gfx::NativeWindow dialog_;
-  web_modal::WebContentsModalDialogHost* host_;
-  bool host_destroying_;
-  std::set<views::Widget*> observed_widgets_;
-  std::set<views::Widget*> shown_widgets_;
-
-  DISALLOW_COPY_AND_ASSIGN(NativeWebContentsModalDialogManagerViews);
-};
-
-#endif  // CHROME_BROWSER_UI_VIEWS_NATIVE_WEB_CONTENTS_MODAL_DIALOG_MANAGER_VIEWS_H_