[Extensions UI Mac] Fix race condition in showing the icon surfacing bubble

chrome/browser/ui/views/toolbar/browser_action_test_util_views.cc

Index: chrome/browser/ui/views/toolbar/browser_action_test_util_views.cc
diff --git a/chrome/browser/ui/views/toolbar/browser_action_test_util_views.cc b/chrome/browser/ui/views/toolbar/browser_action_test_util_views.cc
index 23f6920d6c87166b5bbe1cf59912a61a2327cfa6..1fd128c10e674ea88b5168c8ca68cde445194c02 100644
--- a/chrome/browser/ui/views/toolbar/browser_action_test_util_views.cc
+++ b/chrome/browser/ui/views/toolbar/browser_action_test_util_views.cc
@@ -204,6 +204,12 @@ void BrowserActionTestUtil::SetWidth(int width) {
   container->SetSize(gfx::Size(width, container->height()));
 }
 
+bool BrowserActionTestUtil::IsHighlightingForSurfacingBubble() {
+  return GetContainer(browser_, test_helper_.get())
+      ->toolbar_actions_bar()
+      ->is_highlighting();
+}
+
 ToolbarActionsBar* BrowserActionTestUtil::GetToolbarActionsBar() {
   return GetContainer(browser_, test_helper_.get())->toolbar_actions_bar();
 }