Quickly close tabs/window with long-running unload handlers.

chrome/browser/ui/views/frame/browser_view.cc

Index: chrome/browser/ui/views/frame/browser_view.cc
diff --git a/chrome/browser/ui/views/frame/browser_view.cc b/chrome/browser/ui/views/frame/browser_view.cc
index 04378c8e372a38691892c19ea7d31d9df79ebee8..01379393cdfb5a6d39850a5227595e2430481523 100644
--- a/chrome/browser/ui/views/frame/browser_view.cc
+++ b/chrome/browser/ui/views/frame/browser_view.cc
@@ -1831,6 +1831,13 @@ bool BrowserView::CanClose() {
     // down. When the tab strip is empty we'll be called back again.
     frame_->Hide();
     browser_->OnWindowClosing();
+    browser_->tab_strip_model()->CloseAllTabs();
+    return false;
+  } else if (!browser_->HasCompletedUnloadProcessing()) {
+    // The browser needs to finish running unload handlers.
+    // Hide the frame (so it appears to have closed immediately), and
+    // the browser will call us back again when it is ready to close.
+    frame_->Hide();
     return false;
   }