Move v0 things from ShadowRootRareData into ShadowRootRareDataV0

third_party/WebKit/Source/core/dom/shadow/ShadowRoot.h

Index: third_party/WebKit/Source/core/dom/shadow/ShadowRoot.h
diff --git a/third_party/WebKit/Source/core/dom/shadow/ShadowRoot.h b/third_party/WebKit/Source/core/dom/shadow/ShadowRoot.h
index 2f923bfe4b82b45c2838ca088ebee9a28fac0e39..ccc602113a4c6293882584caae7da89cdcfb169f 100644
--- a/third_party/WebKit/Source/core/dom/shadow/ShadowRoot.h
+++ b/third_party/WebKit/Source/core/dom/shadow/ShadowRoot.h
@@ -43,6 +43,7 @@ class ExceptionState;
 class HTMLShadowElement;
 class InsertionPoint;
 class ShadowRootRareData;
+class ShadowRootRareDataV0;
 class StyleSheetList;
 
 enum class ShadowRootType {
@@ -157,6 +158,7 @@ private:
     void childrenChanged(const ChildrenChange&) override;
 
     ShadowRootRareData* ensureShadowRootRareData();
+    ShadowRootRareDataV0* ensureShadowRootRareDataV0();
 
     void addChildShadowRoot();
     void removeChildShadowRoot();
@@ -174,6 +176,8 @@ private:
     Member<ShadowRoot> m_prev;
     Member<ShadowRoot> m_next;
     Member<ShadowRootRareData> m_shadowRootRareData;
+    Member<ShadowRootRareDataV0> m_shadowRootRareDataV0;
+
     Member<SlotAssignment> m_slotAssignment;
     unsigned m_numberOfStyles : 26;
     unsigned m_type : 2;