Remove ~1750 superfluous includes from core

Source/core/rendering/RenderText.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.
  * Copyright (C) 2006 Andrew Wellington (proton@wiretapped.net)
  * Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *
  * 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 "config.h"
 #include "core/rendering/RenderText.h"
 
 #include "core/accessibility/AXObjectCache.h"
-#include "core/dom/Range.h"
 #include "core/dom/Text.h"
-#include "core/dom/WebCoreMemoryInstrumentation.h"
 #include "core/editing/VisiblePosition.h"
 #include "core/loader/TextResourceDecoder.h"
 #include "core/page/FrameView.h"
 #include "core/page/Settings.h"
 #include "core/platform/graphics/FloatQuad.h"
 #include "core/platform/text/Hyphenation.h"
 #include "core/platform/text/TextBreakIterator.h"
 #include "core/platform/text/transcoder/FontTranscoder.h"
 #include "core/rendering/EllipsisBox.h"
 #include "core/rendering/InlineTextBox.h"
-#include "core/rendering/RenderArena.h"
 #include "core/rendering/RenderBlock.h"
 #include "core/rendering/RenderCombineText.h"
 #include "core/rendering/RenderLayer.h"
 #include "core/rendering/RenderView.h"
 #include "core/rendering/break_lines.h"
 #include <wtf/text/StringBuffer.h>
 #include <wtf/unicode/CharacterNames.h>
 
 using namespace std;
 using namespace WTF;
@@ skipping 1873 matching lines @@
 void RenderText::reportMemoryUsage(MemoryObjectInfo* memoryObjectInfo) const
 {
     MemoryClassInfo info(memoryObjectInfo, this, PlatformMemoryTypes::Rendering);
     RenderObject::reportMemoryUsage(memoryObjectInfo);
     info.addMember(m_text, "text");
     info.addMember(m_firstTextBox, "firstTextBox");
     info.addMember(m_lastTextBox, "lastTextBox");
 }
 
 } // namespace WebCore