Refactor ElementShadow by separating v0 related features as ElementShadowV0

third_party/WebKit/Source/core/css/resolver/SharedStyleFinder.cpp

Index: third_party/WebKit/Source/core/css/resolver/SharedStyleFinder.cpp
diff --git a/third_party/WebKit/Source/core/css/resolver/SharedStyleFinder.cpp b/third_party/WebKit/Source/core/css/resolver/SharedStyleFinder.cpp
index 79fa5b7ce370de30bfa5538c3a91bfc90be6a788..5ef91e67bf009ef5f53d2c02ddd2cd1e7ce7f63f 100644
--- a/third_party/WebKit/Source/core/css/resolver/SharedStyleFinder.cpp
+++ b/third_party/WebKit/Source/core/css/resolver/SharedStyleFinder.cpp
@@ -180,7 +180,7 @@ bool SharedStyleFinder::sharingCandidateCanShareHostStyles(Element& candidate) c
     if (static_cast<bool>(elementShadow) != static_cast<bool>(candidateShadow))
         return false;
 
-    return elementShadow->hasSameStyles(candidateShadow);
+    return elementShadow->hasSameStyles(*candidateShadow);
 }
 
 bool SharedStyleFinder::sharingCandidateDistributedToSameInsertionPoint(Element& candidate) const