Add GraphicsLayerDebugInfo::includesNewPaintInvalidation to distinguish paint from new RenderObjects

Source/platform/graphics/GraphicsLayerDebugInfo.h

Index: Source/platform/graphics/GraphicsLayerDebugInfo.h
diff --git a/Source/platform/graphics/GraphicsLayerDebugInfo.h b/Source/platform/graphics/GraphicsLayerDebugInfo.h
index 019e571a211fffe8baec51f4feed1d95262b213c..a054e9a4c53edecd204da84226d1106c4288c7c8 100644
--- a/Source/platform/graphics/GraphicsLayerDebugInfo.h
+++ b/Source/platform/graphics/GraphicsLayerDebugInfo.h
@@ -46,6 +46,7 @@ public:
     virtual ~GraphicsLayerDebugInfo();
 
     virtual void appendAsTraceFormat(WebString* out) const OVERRIDE;
+    virtual bool includesFirstPaintInvalidation() const OVERRIDE;
 
     GraphicsLayerDebugInfo* clone() const;
 
@@ -54,6 +55,7 @@ public:
     void setCompositingReasons(CompositingReasons reasons) { m_compositingReasons = reasons; }
     void setOwnerNodeId(int id) { m_ownerNodeId = id; }
     Vector<LayoutRect>& currentLayoutRects() { return m_currentLayoutRects; }
+    void setIncludesFirstPaintInvalidation(bool b) { m_includesFirstPaintInvalidation = b; }
 
 private:
     void appendLayoutRects(JSONObject*) const;
@@ -65,6 +67,7 @@ private:
     CompositingReasons m_compositingReasons;
     int m_ownerNodeId;
     Vector<LayoutRect> m_currentLayoutRects;
+    bool m_includesFirstPaintInvalidation;
 };
 
 } // namespace blink