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

ash/test/child_modal_window.cc

Index: ash/test/child_modal_window.cc
diff --git a/ash/test/child_modal_window.cc b/ash/test/child_modal_window.cc
index 40ab94e843469e41c01c14746fea7eab1039c812..df861ba8f4284966888deba0e2e9e49dc8d74da0 100644
--- a/ash/test/child_modal_window.cc
+++ b/ash/test/child_modal_window.cc
@@ -148,7 +148,7 @@ gfx::NativeWindow ChildModalParent::GetChild() const {
 Widget* ChildModalParent::CreateChild() {
   Widget* child = Widget::CreateWindowWithParent(new ChildModalWindow,
                                                  GetWidget()->GetNativeView());
-  wm::SetModalParent(child->GetNativeView(), GetModalParent());
+  wm::SetModalParent(child->GetNativeView(), GetModalParent(), NULL, NULL);
   child->AddObserver(this);
   child->GetNativeView()->SetName("ChildModalWindow");
   return child;