Remove assorted unnecessary includes in core/layout/

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

 /*
  * (C) 1999 Lars Knoll (knoll@kde.org)
  * (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007 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,
  * 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/layout/LayoutTextFragment.h"
 
 #include "core/dom/FirstLetterPseudoElement.h"
 #include "core/dom/PseudoElement.h"
 #include "core/dom/StyleChangeReason.h"
 #include "core/dom/Text.h"
 #include "core/layout/HitTestResult.h"
-#include "core/layout/LayoutBlock.h"
 
 namespace blink {
 
 LayoutTextFragment::LayoutTextFragment(Node* node, StringImpl* str, int startOffset, int length)
     : LayoutText(node, str ? str->substring(startOffset, length) : PassRefPtr<StringImpl>(nullptr))
     , m_start(startOffset)
     , m_fragmentLength(length)
     , m_isRemainingTextLayoutObject(false)
     , m_contentString(str)
     , m_firstLetterPseudoElement(nullptr)
@@ skipping 121 matching lines @@
     LayoutObject::updateHitTestResult(result, point);
 
     // If we aren't part of a first-letter element, or if we
     // are part of first-letter but we're the remaining text then return.
     if (m_isRemainingTextLayoutObject || !firstLetterPseudoElement())
         return;
     result.setInnerNode(firstLetterPseudoElement());
 }
 
 } // namespace blink