Created min size for print preview dialog and modified to allow the

ui/views/widget/native_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_NATIVE_WIDGET_DELEGATE_H_
 #define UI_VIEWS_WIDGET_NATIVE_WIDGET_DELEGATE_H_
 
 #include <vector>
 
 #include "ui/events/event_constants.h"
@@ skipping 27 matching lines @@
 //  An interface implemented by the object that handles events sent by a
 //  NativeWidget implementation.
 //
 class VIEWS_EXPORT NativeWidgetDelegate {
  public:
   virtual ~NativeWidgetDelegate() {}
 
   // Returns true if the window is modal.
   virtual bool IsModal() const = 0;
 
+  virtual bool IsModalTypeChild() const = 0;
+
   // Returns true if the window is a dialog box.
   virtual bool IsDialogBox() const = 0;
 
   // Returns true if the window can be activated.
   virtual bool CanActivate() const = 0;
 
   // Prevents the window from being rendered as deactivated. This state is
   // reset automatically as soon as the window becomes activated again. There is
   // no ability to control the state through this API as this leads to sync
   // problems.
@@ skipping 90 matching lines @@
   // later.  Returns true if the initial focus has been set or the window should
   // not set the initial focus, or false if the caller should set the initial
   // focus (if any).
   virtual bool SetInitialFocus(ui::WindowShowState show_state) = 0;
 };
 
 }  // namespace internal
 }  // namespace views
 
 #endif  // UI_VIEWS_WIDGET_NATIVE_WIDGET_DELEGATE_H_