fix: unclickable regions in some draggable BrowserViews (#27177)

Co-authored-by: Shelley Vohr <[email protected]>

shell/browser/native_browser_view_views.cc

@@ -40,7 +40,6 @@ void NativeBrowserViewViews::UpdateDraggableRegions(
   auto snapped_regions = mojo::Clone(regions);
   for (auto& snapped_region : snapped_regions) {
     snapped_region->bounds.Offset(offset);
-    snapped_region->draggable = true;
   }
 
   draggable_region_ = DraggableRegionsToSkRegion(snapped_regions);