DevTools: Do not close devtools if there are dirty files in workspace

chrome/browser/ui/unload_controller.h

Index: chrome/browser/ui/unload_controller.h
diff --git a/chrome/browser/ui/unload_controller.h b/chrome/browser/ui/unload_controller.h
index 416a12dced4b2e2c37e2e1d5900a56d5c2ce09fb..a96ec5d5c2ecc80c5d48a941803b8ca827c83538 100644
--- a/chrome/browser/ui/unload_controller.h
+++ b/chrome/browser/ui/unload_controller.h
@@ -36,6 +36,9 @@ class UnloadController : public content::NotificationObserver,
   // renderer.
   bool CanCloseContents(content::WebContents* contents);
 
+  // Returns true if we need to run unload events for the |contents|.
+  static bool ShouldRunUnloadEventsHelper(content::WebContents* contents);
+
   // Helper function to run beforeunload listeners on a WebContents.
   // Returns true if |contents| beforeunload listeners were invoked.
   static bool RunUnloadEventsHelper(content::WebContents* contents);