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

ui/wm/core/window_modality_controller.cc

 // 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.
 
 #include "ui/wm/core/window_modality_controller.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 
@@ skipping 110 matching lines @@
 
 void WindowModalityController::OnKeyEvent(ui::KeyEvent* event) {
   aura::Window* target = static_cast<aura::Window*>(event->target());
   if (GetModalTransient(target))
     event->SetHandled();
 }
 
 void WindowModalityController::OnMouseEvent(ui::MouseEvent* event) {
   aura::Window* target = static_cast<aura::Window*>(event->target());
   if (ProcessLocatedEvent(target, event))
-   event->SetHandled();
+    event->SetHandled();
 }
 
 void WindowModalityController::OnTouchEvent(ui::TouchEvent* event) {
   aura::Window* target = static_cast<aura::Window*>(event->target());
   if (ProcessLocatedEvent(target, event))
     event->SetHandled();
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // WindowModalityController, aura::EnvObserver implementation:
@@ skipping 65 matching lines @@
     }
 
     AnimateWindow(modal_transient_child, WINDOW_ANIMATION_TYPE_BOUNCE);
   }
   if (event->type() == ui::ET_TOUCH_CANCELLED)
     return false;
   return !!modal_transient_child;
 }
 
 }  // namespace wm