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

third_party/WebKit/Source/core/layout/LayoutCounter.h

 /*
  * Copyright (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 27 matching lines @@
 // CounterNodes is where the logic for knowing the value of a counter is.
 // LayoutCounter makes sure the CounterNodes tree is consistent with the
 // style. It then just queries CounterNodes for their values.
 //
 // CounterNodes are rare so they are stored in a map instead of growing
 // LayoutObject. counterMaps() (in LayoutCounter.cpp) keeps the association
 // between LayoutObject and CounterNodes. To avoid unneeded hash-lookups in the
 // common case where there is no CounterNode, LayoutObject also keeps track of
 // whether it has at least one CounterNode in the hasCounterNodeMap bit.
 //
-// Keeping the map up-to-date is the reason why LayoutObjects need to call into
+// Keeping the map up to date is the reason why LayoutObjects need to call into
 // LayoutCounter during their lifetime (see the static functions below).
 class LayoutCounter final : public LayoutText {
 public:
     LayoutCounter(Document*, const CounterContent&);
     ~LayoutCounter() override;
 
     // These functions are static so that any LayoutObject can call them.
     // The reason is that any LayoutObject in the tree can have a CounterNode
     // without a LayoutCounter (e.g. by specifying 'counter-increment' without
     // a "content: counter(a)" directive)).
@@ skipping 27 matching lines @@
 DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutCounter, isCounter());
 
 } // namespace blink
 
 #ifndef NDEBUG
 // Outside the WebCore namespace for ease of invocation from gdb.
 void showCounterLayoutTree(const blink::LayoutObject*, const char* counterName = nullptr);
 #endif
 
 #endif // LayoutCounter_h