Reset m_didTransformToRootUpdate flag during invalidationTreeIfNeeded

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 7c9717008de3519e17991f67362e203be307240d..f17b4c0ed3f620f0be8aef9322c0205824d240a9 100644
--- a/Source/core/rendering/RenderObject.h
+++ b/Source/core/rendering/RenderObject.h
@@ -1047,7 +1047,7 @@ public:
     bool onlyNeededPositionedMovementLayout() const { return m_bitfields.onlyNeededPositionedMovementLayout(); }
     void setOnlyNeededPositionedMovementLayout(bool b) { m_bitfields.setOnlyNeededPositionedMovementLayout(b); }
 
-    void clearPaintInvalidationState();
+    virtual void clearPaintInvalidationState();
 
     // layoutDidGetCalled indicates whether this render object was re-laid-out
     // since the last call to setLayoutDidGetCalled(false) on this object.
@@ -1135,6 +1135,14 @@ protected:
     void incrementallyInvalidatePaint(const RenderLayerModelObject& paintInvalidationContainer, const LayoutRect& oldBounds, const LayoutRect& newBounds);
     void fullyInvalidatePaint(const RenderLayerModelObject& paintInvalidationContainer, InvalidationReason, const LayoutRect& oldBounds, const LayoutRect& newBounds);
 
+#if ENABLE(ASSERT)
+    virtual bool paintInvalidationStateIsDirty() const
+    {
+        return layoutDidGetCalled() || shouldDoFullPaintInvalidation() || shouldDoFullPaintInvalidationIfSelfPaintingLayer()
+            || onlyNeededPositionedMovementLayout() || neededLayoutBecauseOfChildren() || mayNeedPaintInvalidation();
+    }
+#endif
+
 private:
     const RenderLayerModelObject* enclosingCompositedContainer() const;
 
@@ -1155,12 +1163,6 @@ private:
 
 #if ENABLE(ASSERT)
     void checkBlockPositionedObjectsNeedLayout();
-
-    bool paintInvalidationStateIsDirty() const
-    {
-        return layoutDidGetCalled() || shouldDoFullPaintInvalidation() || shouldDoFullPaintInvalidationIfSelfPaintingLayer()
-            || onlyNeededPositionedMovementLayout() || neededLayoutBecauseOfChildren() || mayNeedPaintInvalidation();
-    }
 #endif
     const char* invalidationReasonToString(InvalidationReason) const;