Devirtualize LayoutBlock::firstLineBlock()

third_party/WebKit/Source/core/layout/LayoutObject.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  *           (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2009 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
@@ skipping 323 matching lines @@
     }
 
 #endif
 
     // Correct version of !layoutObjectHasNoBoxEffectObsolete().
     bool hasBoxEffect() const
     {
         return hasBoxDecorationBackground() || style()->hasVisualOverflowingEffect();
     }
 
-    // Obtains the nearest enclosing block (including this block) that contributes a first-line style to our inline
-    // children.
-    virtual LayoutBlock* firstLineBlock() const;
-
     // LayoutObject tree manipulation
     //////////////////////////////////////////
     virtual bool canHaveChildren() const { return virtualChildren(); }
     virtual bool isChildAllowed(LayoutObject*, const ComputedStyle&) const { return true; }
 
     // This function is called whenever a child is inserted under |this|.
     //
     // The main purpose of this function is to generate a consistent layout
     // tree, which means generating the missing anonymous objects. Most of the
     // time there'll be no anonymous objects to generate.
@@ skipping 1682 matching lines @@
 void showTree(const blink::LayoutObject*);
 void showLineTree(const blink::LayoutObject*);
 void showLayoutTree(const blink::LayoutObject* object1);
 // We don't make object2 an optional parameter so that showLayoutTree
 // can be called from gdb easily.
 void showLayoutTree(const blink::LayoutObject* object1, const blink::LayoutObject* object2);
 
 #endif
 
 #endif // LayoutObject_h