Stop using nested message loop for alert() and other JS dialogs

chrome/browser/ui/browser.cc

Index: chrome/browser/ui/browser.cc
diff --git a/chrome/browser/ui/browser.cc b/chrome/browser/ui/browser.cc
index 9512433473b7a625f4b34d7545c992ed58b4836f..87f9a1e50509dc5aff1f2787cc35a28d0e69f920 100644
--- a/chrome/browser/ui/browser.cc
+++ b/chrome/browser/ui/browser.cc
@@ -688,6 +688,20 @@ bool Browser::IsAttemptingToCloseBrowser() const {
   return unload_controller_->is_attempting_to_close_browser();
 }
 
+bool Browser::ShouldRunUnloadListenerBeforeClosing(
+    content::WebContents* web_contents) {
+  if (IsFastTabUnloadEnabled())
+    return fast_unload_controller_->ShouldRunUnloadEventsHelper(web_contents);
+  return unload_controller_->ShouldRunUnloadEventsHelper(web_contents);
+}
+
+bool Browser::RunUnloadListenerBeforeClosing(
+    content::WebContents* web_contents) {
+  if (IsFastTabUnloadEnabled())
+    return fast_unload_controller_->RunUnloadEventsHelper(web_contents);
+  return unload_controller_->RunUnloadEventsHelper(web_contents);
+}
+
 void Browser::OnWindowClosing() {
   if (!ShouldCloseWindow())
     return;