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

ui/wm/core/window_modality_controller.cc

Index: ui/wm/core/window_modality_controller.cc
diff --git a/ui/wm/core/window_modality_controller.cc b/ui/wm/core/window_modality_controller.cc
index 094acc49189b86f2d21d4dbade56e7b8b7e1486d..c372a63a25254a97e5b2d620082e53e949fc17a0 100644
--- a/ui/wm/core/window_modality_controller.cc
+++ b/ui/wm/core/window_modality_controller.cc
@@ -22,6 +22,7 @@
 #include "ui/wm/core/window_util.h"
 
 namespace wm {
+const char kHasIndependentBoundsKey[] = "__INDEPENDENT_BOUNDS__";
 
 // Transient child's modal parent.
 extern const aura::WindowProperty<aura::Window*>* const kModalParentKey;
@@ -128,7 +129,7 @@ void WindowModalityController::OnKeyEvent(ui::KeyEvent* event) {
 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) {