Remove rendering dependency in GraphicsContextAnnotation

Source/core/rendering/GraphicsContextAnnotator.h

Index: Source/core/rendering/GraphicsContextAnnotator.h
diff --git a/Source/core/dom/ParentNode.h b/Source/core/rendering/GraphicsContextAnnotator.h
similarity index 67%
copy from Source/core/dom/ParentNode.h
copy to Source/core/rendering/GraphicsContextAnnotator.h
index 9fb949a35b0aefb308f11af7253806ad7167cbe8..5d0936e551e5e3df46960cb7ff95ac2bc47d1b02 100644
--- a/Source/core/dom/ParentNode.h
+++ b/Source/core/rendering/GraphicsContextAnnotator.h
@@ -1,4 +1,5 @@
 /*
+ * Copyright (C) 2013 Google Inc. All rights reserved.
  * Copyright (C) 2013 Samsung Electronics. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -28,36 +29,40 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef ParentNode_h
-#define ParentNode_h
+#ifndef GraphicsContextAnnotator_h
+#define GraphicsContextAnnotator_h
 
-#include "core/dom/ContainerNode.h"
+#define ANNOTATE_GRAPHICS_CONTEXT(paintInfo, renderer) \
+    GraphicsContextAnnotator scopedGraphicsContextAnnotator; \
+    if (UNLIKELY(paintInfo.context->annotationMode())) \
+        scopedGraphicsContextAnnotator.annotate(paintInfo, renderer)
 
 namespace WebCore {
 
-class ParentNode {
+class GraphicsContext;
+struct PaintInfo;
+class RenderObject;
+
+class GraphicsContextAnnotator {
 public:
-    static PassRefPtr<HTMLCollection> children(ContainerNode* node)
-    {
-        return node->children();
-    }
+    GraphicsContextAnnotator()
+        : m_context(0)
+    { }
 
-    static Element* firstElementChild(ContainerNode* node)
+    ~GraphicsContextAnnotator()
     {
-        return node->firstElementChild();
+        if (UNLIKELY(m_context != 0))
+            finishAnnotation();
     }
 
-    static Element* lastElementChild(ContainerNode* node)
-    {
-        return node->lastElementChild();
-    }
+    void annotate(const PaintInfo&, const RenderObject*);
 
-    static unsigned childElementCount(ContainerNode* node)
-    {
-        return node->childElementCount();
-    }
+private:
+    void finishAnnotation();
+
+    GraphicsContext* m_context;
 };
 
 } // namespace WebCore
 
-#endif // ParentNode_h
+#endif // GraphicsContextAnnotator_h