views: implement width snapping for DialogDelegateViews

ui/views/views_delegate.cc

Index: ui/views/views_delegate.cc
diff --git a/ui/views/views_delegate.cc b/ui/views/views_delegate.cc
index a14cf4882998ba300f4f8e1d42605e57716af110..c2054f0af7a908a9989802b677f4e347444f019c 100644
--- a/ui/views/views_delegate.cc
+++ b/ui/views/views_delegate.cc
@@ -160,6 +160,10 @@ int ViewsDelegate::GetDistanceMetric(DistanceMetric metric) const {
   return 0;
 }
 
+int ViewsDelegate::GetSnappedDialogWidth(int width) const {
+  return width;
+}
+
 ViewsDelegate::ViewsDelegate()
     : views_tsc_factory_(new ViewsTouchEditingControllerFactory) {
   DCHECK(!views_delegate);