Ensure permission bubble is stacked below the exclusive access bubble.

chrome/browser/ui/views/website_settings/permissions_bubble_view_views.cc

Index: chrome/browser/ui/views/website_settings/permissions_bubble_view_views.cc
diff --git a/chrome/browser/ui/views/website_settings/permissions_bubble_view_views.cc b/chrome/browser/ui/views/website_settings/permissions_bubble_view_views.cc
index 3ad8efeae462e7c2b656ef8bdc70823f502c1b55..eac42e7c64d4638f0f3230252f59fb3d1cd7d1fa 100644
--- a/chrome/browser/ui/views/website_settings/permissions_bubble_view_views.cc
+++ b/chrome/browser/ui/views/website_settings/permissions_bubble_view_views.cc
@@ -36,6 +36,14 @@ views::BubbleBorder::Arrow PermissionBubbleViewViews::GetAnchorArrow() {
   return views::BubbleBorder::NONE;
 }
 
+gfx::NativeView PermissionBubbleViewViews::GetExclusiveAccessNativeView() {
+  BrowserView* browser_view = BrowserView::GetBrowserViewForBrowser(browser_);
+  if (!browser_view->IsFullscreenBubbleVisible())
+    return nullptr;
+
+  return browser_view->exclusive_access_bubble()->GetWidget()->GetNativeView();
+}
+
 // static
 std::unique_ptr<PermissionBubbleView> PermissionBubbleView::Create(
     Browser* browser) {