[Line Layout API] Convert another RootInlineBox use of layoutObject()

third_party/WebKit/Source/core/layout/line/InlineBox.h

 /*
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2009, 2010, 2011 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
@@ skipping 36 matching lines @@
         , m_prev(nullptr)
         , m_parent(nullptr)
         , m_layoutObject(obj)
         , m_logicalWidth()
 #if ENABLE(ASSERT)
         , m_hasBadParent(false)
 #endif
     {
     }
 
-    InlineBox(LayoutObject& obj, LayoutPoint topLeft, LayoutUnit logicalWidth, bool firstLine, bool constructed,
+    InlineBox(InlineBox* inlineBoxForLayoutObject, LayoutPoint topLeft, LayoutUnit logicalWidth, bool firstLine, bool constructed,
         bool dirty, bool extracted, bool isHorizontal, InlineBox* next, InlineBox* prev, InlineFlowBox* parent)
         : m_next(next)
         , m_prev(prev)
         , m_parent(parent)
-        , m_layoutObject(obj)
+        , m_layoutObject(inlineBoxForLayoutObject->layoutObject())
         , m_topLeft(topLeft)
         , m_logicalWidth(logicalWidth)
         , m_bitfields(firstLine, constructed, dirty, extracted, isHorizontal)
 #if ENABLE(ASSERT)
         , m_hasBadParent(false)
 #endif
     {
     }
 
     virtual ~InlineBox();
@@ skipping 381 matching lines @@
 
 } // namespace blink
 
 #ifndef NDEBUG
 // Outside the WebCore namespace for ease of invocation from gdb.
 void showTree(const blink::InlineBox*);
 void showLineTree(const blink::InlineBox*);
 #endif
 
 #endif // InlineBox_h