"up-to-date" should only use hyphens when used as compound modifier of a noun

chrome/browser/ui/extensions/extension_action_view_controller.cc

Index: chrome/browser/ui/extensions/extension_action_view_controller.cc
diff --git a/chrome/browser/ui/extensions/extension_action_view_controller.cc b/chrome/browser/ui/extensions/extension_action_view_controller.cc
index d45587afac976c2ebfc46582b064ef5bb2136357..ccefa92ddfb2bc6fac6a69e3f23126cccb38f501 100644
--- a/chrome/browser/ui/extensions/extension_action_view_controller.cc
+++ b/chrome/browser/ui/extensions/extension_action_view_controller.cc
@@ -144,7 +144,7 @@ void ExtensionActionViewController::HidePopup() {
     // We need to do these actions synchronously (instead of closing and then
     // performing the rest of the cleanup in OnExtensionHostDestroyed()) because
     // the extension host may close asynchronously, and we need to keep the view
-    // delegate up-to-date.
+    // delegate up to date.
     if (popup_host_)
       OnPopupClosed();
   }