Remove SVGCursorElement

third_party/WebKit/Source/core/svg/SVGElementRareData.cpp

Index: third_party/WebKit/Source/core/svg/SVGElementRareData.cpp
diff --git a/third_party/WebKit/Source/core/svg/SVGElementRareData.cpp b/third_party/WebKit/Source/core/svg/SVGElementRareData.cpp
index 5f14b8057441bc4f589b59f368d2b942fda03997..0b06a729d24c287698a45b920295c5ba7d0884d4 100644
--- a/third_party/WebKit/Source/core/svg/SVGElementRareData.cpp
+++ b/third_party/WebKit/Source/core/svg/SVGElementRareData.cpp
@@ -4,10 +4,8 @@
 
 #include "core/svg/SVGElementRareData.h"
 
-#include "core/css/CSSCursorImageValue.h"
 #include "core/css/resolver/StyleResolver.h"
 #include "core/dom/Document.h"
-#include "core/svg/SVGCursorElement.h"
 #include "core/svg/SVGElementProxy.h"
 
 namespace blink {
@@ -48,27 +46,6 @@ DEFINE_TRACE(SVGElementRareData) {
   visitor->trace(m_elementInstances);
   visitor->trace(m_correspondingElement);
   visitor->trace(m_owner);
-  visitor->template registerWeakMembers<
-      SVGElementRareData, &SVGElementRareData::processWeakMembers>(this);
-}
-
-void SVGElementRareData::processWeakMembers(Visitor* visitor) {
-  ASSERT(m_owner);
-  if (!ThreadHeap::isHeapObjectAlive(m_cursorElement))
-    m_cursorElement = nullptr;
-
-  if (!ThreadHeap::isHeapObjectAlive(m_cursorImageValue)) {
-    // The owning SVGElement is still alive and if it is pointing to an
-    // SVGCursorElement we unregister it when the CSSCursorImageValue dies.
-    if (m_cursorElement) {
-      m_cursorElement->removeReferencedElement(m_owner);
-      m_cursorElement = nullptr;
-    }
-    m_cursorImageValue = nullptr;
-  }
-  ASSERT(!m_cursorElement || ThreadHeap::isHeapObjectAlive(m_cursorElement));
-  ASSERT(!m_cursorImageValue ||
-         ThreadHeap::isHeapObjectAlive(m_cursorImageValue));
 }
 
 AffineTransform* SVGElementRareData::animateMotionTransform() {