Centralize TextStream functions to remove RenderTreeAsText dependency of the filters

Source/core/rendering/svg/SVGRenderTreeAsText.cpp

 /*
  * Copyright (C) 2004, 2005, 2007, 2009 Apple Inc. All rights reserved.
  *           (C) 2005 Rob Buis <buis@kde.org>
  *           (C) 2006 Alexander Kellett <lypanov@kde.org>
  * Copyright (C) Research In Motion Limited 2010. 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
@@ skipping 106 matching lines @@
         writeNameValuePair(ts, name, value);
 }
 
 template<typename ValueType>
 static void writeIfNotDefault(TextStream& ts, const char* name, ValueType value, ValueType defaultValue)
 {
     if (value != defaultValue)
         writeNameValuePair(ts, name, value);
 }
 
-TextStream& operator<<(TextStream& ts, const FloatRect& r)
-{
-    ts << "at (" << TextStream::FormatNumberRespectingIntegers(r.x());
-    ts << "," << TextStream::FormatNumberRespectingIntegers(r.y());
-    ts << ") size " << TextStream::FormatNumberRespectingIntegers(r.width());
-    ts << "x" << TextStream::FormatNumberRespectingIntegers(r.height());
-    return ts;
-}
-
 TextStream& operator<<(TextStream& ts, const AffineTransform& transform)
 {
     if (transform.isIdentity())
         ts << "identity";
     else
         ts << "{m=(("
            << transform.a() << "," << transform.b()
            << ")("
            << transform.c() << "," << transform.d()
            << ")) t=("
@@ skipping 514 matching lines @@
             ts << " ";
             writeNameAndQuotedValue(ts, "filter", svgStyle->filterResource());
             ts << " ";
             writeStandardPrefix(ts, *filter, 0);
             ts << " " << filter->resourceBoundingBox(&renderer) << "\n";
         }
     }
 }
 
 } // namespace WebCore