Remove 2 calls to paintInvalidationForWholeRenderer

Source/core/rendering/RenderObject.h

Index: Source/core/rendering/RenderObject.h
diff --git a/Source/core/rendering/RenderObject.h b/Source/core/rendering/RenderObject.h
index a646439133714d3716f98c8a827fec809e70a082..1975ed16046eecbe6ed469f16e300cd38c25f069 100644
--- a/Source/core/rendering/RenderObject.h
+++ b/Source/core/rendering/RenderObject.h
@@ -389,6 +389,9 @@ public:
     virtual bool isVideo() const { return false; }
     virtual bool isWidget() const { return false; }
 
+    // The background of the root element or the body element could propagate up to the canvas.
+    bool backgroundCanBleedToCanvas() const { return isBody() || isDocumentElement(); }
+
     bool isDocumentElement() const { return document().documentElement() == m_node; }
     // isBody is called from RenderBox::styleWillChange and is thus quite hot.
     bool isBody() const { return node() && node()->hasTagName(HTMLNames::bodyTag); }