Changed AppListDialogContentsView to extend DialogDelegate

ui/views/widget/widget_delegate.h

 // Copyright (c) 2012 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 UI_VIEWS_WIDGET_WIDGET_DELEGATE_H_
 #define UI_VIEWS_WIDGET_WIDGET_DELEGATE_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 47 matching lines @@
   // Returns true if the window can ever be maximized.
   virtual bool CanMaximize() const;
 
   // Returns true if the window can be activated.
   virtual bool CanActivate() const;
 
   // Returns the modal type that applies to the widget. Default is
   // ui::MODAL_TYPE_NONE (not modal).
   virtual ui::ModalType GetModalType() const;
 
+  // Returns whether or not this widget is a Dialog box. Dialogs re-activate
+  // their parent widget when closed.
+  virtual bool IsDialogBox();

[tapted, 2014/07/21 00:34:07]

nit: const

[sashab, 2014/07/21 03:36:21]

Originally, it actually couldn't be const, because AsDialogDelegate is not const
:) So just as well I did them both in this CL. Done.

+
   virtual ui::AXRole GetAccessibleWindowRole() const;
 
   // Returns the title to be read with screen readers.
   virtual base::string16 GetAccessibleWindowTitle() const;
 
   // Returns the text to be displayed in the window title.
   virtual base::string16 GetWindowTitle() const;
 
   // Returns true if the window should show a title in the title bar.
   virtual bool ShouldShowWindowTitle() const;
@@ skipping 127 matching lines @@
   virtual Widget* GetWidget() OVERRIDE;
   virtual const Widget* GetWidget() const OVERRIDE;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(WidgetDelegateView);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_WIDGET_WIDGET_DELEGATE_H_