Remove include guards in .cpp file

third_party/WebKit/Source/core/layout/BidiRunForLine.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.
  *
  */
 
-#ifndef BidiRunForLine_h
-#define BidiRunForLine_h
-
 #include "config.h"
 #include "core/layout/BidiRunForLine.h"
 
 #include "core/layout/line/InlineIterator.h"
 
 namespace blink {
 
 using namespace WTF::Unicode;
 
 static LayoutObject* firstLayoutObjectForDirectionalityDetermination(
@@ skipping 37 matching lines @@
         if (!next)
             break;
 
         current = next;
     }
 
     return current;
 }
 
 TextDirection determinePlaintextDirectionality(LayoutObject* root,
-    LayoutObject* current = 0, unsigned pos = 0)
+    LayoutObject* current, unsigned pos)
 {
     LayoutObject* firstLayoutObject = firstLayoutObjectForDirectionalityDetermination(root, current);
     InlineIterator iter(LineLayoutItem(root), LineLayoutItem(firstLayoutObject), firstLayoutObject == current ? pos : 0);
     InlineBidiResolver observer;
     observer.setStatus(BidiStatus(root->style()->direction(),
         isOverride(root->style()->unicodeBidi())));
     observer.setPositionIgnoringNestedIsolates(iter);
     return observer.determineParagraphDirectionality();
 }
 
@@ skipping 125 matching lines @@
             isolatedRunsStack.resize(isolatedRunsStack.size() + 1);
             isolatedRunsStack.last().isolatedRuns.appendVector(
                 isolatedResolver.isolatedRuns());
             isolatedRunsStack.last().root = isolatedInline;
             restoreIsolatedMidpointStates(topResolver, isolatedResolver);
         }
     }
 }
 
 } // namespace blink
-
-#endif // BidiRunForLine_h