Centralize TextStream functions to remove RenderTreeAsText dependency of the filters

Source/core/rendering/RenderTreeAsText.h

 /*
  * Copyright (C) 2003, 2006, 2008 Apple Inc. 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 14 matching lines @@
 
 #ifndef RenderTreeAsText_h
 #define RenderTreeAsText_h
 #include "platform/text/TextStream.h"
 
 #include "wtf/Forward.h"
 
 namespace WebCore {
 
 class Element;
-class FloatPoint;
-class FloatSize;
 class Frame;
-class IntPoint;
-class IntRect;
-class LayoutPoint;
 class RenderObject;
 class TextStream;
 
 enum RenderAsTextBehaviorFlags {
     RenderAsTextBehaviorNormal = 0,
     RenderAsTextShowAllLayers = 1 << 0, // Dump all layers, not just those that would paint.
     RenderAsTextShowLayerNesting = 1 << 1, // Annotate the layer lists.
     RenderAsTextShowCompositedLayers = 1 << 2, // Show which layers are composited.
     RenderAsTextShowAddresses = 1 << 3, // Show layer and renderer addresses.
     RenderAsTextShowIDAndClass = 1 << 4, // Show id and class attributes
     RenderAsTextPrintingMode = 1 << 5, // Dump the tree in printing mode.
     RenderAsTextDontUpdateLayout = 1 << 6, // Don't update layout, to make it safe to call showLayerTree() from the debugger inside layout or painting code.
     RenderAsTextShowLayoutState = 1 << 7 // Print the various 'needs layout' bits on renderers.
 };
 typedef unsigned RenderAsTextBehavior;
 
 // You don't need pageWidthInPixels if you don't specify RenderAsTextInPrintingMode.
 String externalRepresentation(Frame*, RenderAsTextBehavior = RenderAsTextBehaviorNormal);
 String externalRepresentation(Element*, RenderAsTextBehavior = RenderAsTextBehaviorNormal);
 void write(TextStream&, const RenderObject&, int indent = 0, RenderAsTextBehavior = RenderAsTextBehaviorNormal);
-void writeIndent(TextStream&, int indent);
 
 class RenderTreeAsText {
 // FIXME: This is a cheesy hack to allow easy access to RenderStyle colors.  It won't be needed if we convert
 // it to use visitedDependentColor instead. (This just involves rebaselining many results though, so for now it's
 // not being done).
 public:
 static void writeRenderObject(TextStream& ts, const RenderObject& o, RenderAsTextBehavior behavior);
 };
 
-TextStream& operator<<(TextStream&, const IntPoint&);
-TextStream& operator<<(TextStream&, const IntRect&);
-TextStream& operator<<(TextStream&, const LayoutPoint&);
-TextStream& operator<<(TextStream&, const FloatPoint&);
-TextStream& operator<<(TextStream&, const FloatSize&);
-
-template<typename Item>
-TextStream& operator<<(TextStream& ts, const Vector<Item>& vector)
-{
-    ts << "[";
-
-    unsigned size = vector.size();
-    for (unsigned i = 0; i < size; ++i) {
-        ts << vector[i];
-        if (i < size - 1)
-            ts << ", ";
-    }
-
-    ts << "]";
-    return ts;
-}
-
 // Helper function shared with SVGRenderTreeAsText
 String quoteAndEscapeNonPrintables(const String&);
 
 String counterValueForElement(Element*);
 
 String markerTextForListItem(Element*);
 
 } // namespace WebCore
 
 #endif // RenderTreeAsText_h