Switch all LayoutTests to use new accessibility relative bounding box API.

third_party/WebKit/Source/platform/geometry/FloatRect.h

 /*
  * Copyright (C) 2003, 2006, 2007 Apple Inc.  All rights reserved.
  * Copyright (C) 2005 Nokia.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 206 matching lines @@
     return c;
 }
 
 inline FloatRect unionRect(const FloatRect& a, const FloatRect& b)
 {
     FloatRect c = a;
     c.unite(b);
     return c;
 }
 
-FloatRect unionRect(const Vector<FloatRect>&);
+PLATFORM_EXPORT FloatRect unionRect(const Vector<FloatRect>&);
 
 inline FloatRect& operator+=(FloatRect& a, const FloatRect& b)
 {
     a.move(b.x(), b.y());
     a.setWidth(a.width() + b.width());
     a.setHeight(a.height() + b.height());
     return a;
 }
 
 inline FloatRect operator+(const FloatRect& a, const FloatRect& b)
@@ skipping 23 matching lines @@
 // Map supplied rect from srcRect to an equivalent rect in destRect.
 PLATFORM_EXPORT FloatRect mapRect(const FloatRect&, const FloatRect& srcRect, const FloatRect& destRect);
 
 // Redeclared here to avoid ODR issues.
 // See platform/testing/GeometryPrinters.h.
 void PrintTo(const FloatRect&, std::ostream*);
 
 } // namespace blink
 
 #endif