Revert of Put LayoutAnalyzer back behind disabled-by-default-blink.debug.layout.

Source/core/layout/LayoutBlock.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2007 David Smith (catfish.man@gmail.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) Research In Motion Limited 2010. 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
@@ skipping 1606 matching lines @@
         LayoutUnit oldClientAfterEdge = hasOverflowModel() ? m_overflow->layoutClientAfterEdge() : clientLogicalBottom();
         computeOverflow(oldClientAfterEdge, true);
     }
 
     updateLayerTransformAfterLayout();
 
     updateScrollInfoAfterLayout();
 
     clearNeedsLayout();
 
-    if (LayoutAnalyzer* analyzer = frameView()->layoutAnalyzer())
-        analyzer->increment(LayoutAnalyzer::LayoutObjectsThatNeedSimplifiedLayout);
+    frameView()->layoutAnalyzer().increment(LayoutAnalyzer::LayoutObjectsThatNeedSimplifiedLayout);
 
     return true;
 }
 
 void LayoutBlock::markFixedPositionObjectForLayoutIfNeeded(LayoutObject* child, SubtreeLayoutScope& layoutScope)
 {
     if (child->style()->position() != FixedPosition)
         return;
 
     bool hasStaticBlockPosition = child->style()->hasStaticBlockPosition(isHorizontalWritingMode());
@@ skipping 2277 matching lines @@
 void LayoutBlock::showLineTreeAndMark(const InlineBox* markedBox1, const char* markedLabel1, const InlineBox* markedBox2, const char* markedLabel2, const LayoutObject* obj) const
 {
     showLayoutObject();
     for (const RootInlineBox* root = firstRootBox(); root; root = root->nextRootBox())
         root->showLineTreeAndMark(markedBox1, markedLabel1, markedBox2, markedLabel2, obj, 1);
 }
 
 #endif
 
 } // namespace blink