[Editing][DOM][CodeHealth] Move Node::*editable* functions to core/editing

third_party/WebKit/Source/core/layout/LayoutBlockFlowLine.cpp

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2003, 2004, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All right reserved.
  * Copyright (C) 2010 Google 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,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  *
  */
 
 #include "core/dom/AXObjectCache.h"
+#include "core/editing/EditingUtilities.h"
 #include "core/layout/BidiRunForLine.h"
 #include "core/layout/LayoutObject.h"
 #include "core/layout/LayoutRubyRun.h"
 #include "core/layout/LayoutView.h"
 #include "core/layout/VerticalPositionCache.h"
 #include "core/layout/api/LineLayoutItem.h"
 #include "core/layout/api/SelectionState.h"
 #include "core/layout/line/BreakingContextInlineHeaders.h"
 #include "core/layout/line/GlyphOverflow.h"
 #include "core/layout/line/LayoutTextInfo.h"
@@ skipping 2040 matching lines @@
     if (!line || !line->isFirstLineStyle())
         return reason;
     // It's the RootInlineBox that paints the ::first-line background. Note that since it may be
     // expensive to figure out if the first line is affected by any ::first-line selectors at all,
     // we just invalidate it unconditionally, since that's typically cheaper.
     invalidateDisplayItemClient(*line, reason);
     return reason;
 }
 
 } // namespace blink