Style changes to visual overflow do not require a layout

Source/core/rendering/style/RenderStyle.cpp

Index: Source/core/rendering/style/RenderStyle.cpp
diff --git a/Source/core/rendering/style/RenderStyle.cpp b/Source/core/rendering/style/RenderStyle.cpp
index 5bc10a9b66565f176cd14ab56e9b68093e850b85..af75a76ad9b02831944cd08e60ca437fcff11563 100644
--- a/Source/core/rendering/style/RenderStyle.cpp
+++ b/Source/core/rendering/style/RenderStyle.cpp
@@ -458,10 +458,6 @@ bool RenderStyle::diffNeedsFullLayoutAndPaintInvalidation(const RenderStyle& oth
             && *rareNonInheritedData->m_flexibleBox.get() != *other.rareNonInheritedData->m_flexibleBox.get())
             return true;
 
-        // FIXME: We should add an optimized form of layout that just recomputes visual overflow.
-        if (!rareNonInheritedData->shadowDataEquivalent(*other.rareNonInheritedData.get()))
-            return true;
-
         if (!rareNonInheritedData->reflectionDataEquivalent(*other.rareNonInheritedData.get()))
             return true;
 
@@ -664,6 +660,7 @@ bool RenderStyle::diffNeedsPaintInvalidationObject(const RenderStyle& other) con
             || rareNonInheritedData->m_borderFit != other.rareNonInheritedData->m_borderFit
             || rareNonInheritedData->m_objectFit != other.rareNonInheritedData->m_objectFit
             || rareNonInheritedData->m_objectPosition != other.rareNonInheritedData->m_objectPosition
+            || !rareNonInheritedData->shadowDataEquivalent(*other.rareNonInheritedData.get())
             || !dataEquivalent(rareNonInheritedData->m_shapeOutside, other.rareNonInheritedData->m_shapeOutside)
             || !dataEquivalent(rareNonInheritedData->m_clipPath, other.rareNonInheritedData->m_clipPath))
             return true;