Remove LayoutSVGResourceContainer::m_id

third_party/WebKit/Source/core/layout/svg/LayoutSVGResourceContainer.h

Index: third_party/WebKit/Source/core/layout/svg/LayoutSVGResourceContainer.h
diff --git a/third_party/WebKit/Source/core/layout/svg/LayoutSVGResourceContainer.h b/third_party/WebKit/Source/core/layout/svg/LayoutSVGResourceContainer.h
index 188462109c58d4bf207d61869e914263fa9fa3fa..f22b7f9d5926f477c9f736134edbf3ef52b537c5 100644
--- a/third_party/WebKit/Source/core/layout/svg/LayoutSVGResourceContainer.h
+++ b/third_party/WebKit/Source/core/layout/svg/LayoutSVGResourceContainer.h
@@ -62,7 +62,7 @@ class LayoutSVGResourceContainer : public LayoutSVGHiddenContainer {
            resourceType == RadialGradientResourceType;
   }
 
-  void idChanged();
+  void idChanged(const AtomicString& oldId, const AtomicString& newId);
 
   void invalidateCacheAndMarkForLayout(SubtreeLayoutScope* = nullptr);
 
@@ -99,7 +99,6 @@ class LayoutSVGResourceContainer : public LayoutSVGHiddenContainer {
   void removeClient(LayoutObject*);
   void detachAllClients();
 
-  AtomicString m_id;
   // Track global (markAllClientsForInvalidation) invals to avoid redundant
   // crawls.
   unsigned m_invalidationMask : 8;