Optimize sizeof(InlineBox) by eliminating class layout padding

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

 /*
  * Copyright (C) 2003, 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
@@ skipping 21 matching lines @@
 #ifndef NDEBUG
 #include <stdio.h>
 #endif
 
 namespace blink {
 
 class LayoutObject;
 
 struct SameSizeAsInlineBox : DisplayItemClient {
   virtual ~SameSizeAsInlineBox() {}
-  uint32_t bitfields;
   void* a[4];
   LayoutPoint b;
   LayoutUnit c;
+  uint32_t bitfields;
 #if DCHECK_IS_ON()
   bool f;
 #endif
 };
 
 static_assert(sizeof(InlineBox) == sizeof(SameSizeAsInlineBox),
               "InlineBox should stay small");
 
 #if DCHECK_IS_ON()
 InlineBox::~InlineBox() {
@@ skipping 334 matching lines @@
 }
 
 void showLineTree(const blink::InlineBox* b) {
   if (b)
     b->ShowLineTreeForThis();
   else
     fprintf(stderr, "Cannot showLineTree for (nil) InlineBox.\n");
 }
 
 #endif