Oilpan: move editing objects to the heap.

Source/core/editing/SplitElementCommand.cpp

Index: Source/core/editing/SplitElementCommand.cpp
diff --git a/Source/core/editing/SplitElementCommand.cpp b/Source/core/editing/SplitElementCommand.cpp
index 02a2761812444d0cca8f7c7ecac733923fd87042..588c4d86e011cd86bcda5a00f847ccab8553a8bd 100644
--- a/Source/core/editing/SplitElementCommand.cpp
+++ b/Source/core/editing/SplitElementCommand.cpp
@@ -34,7 +34,7 @@
 
 namespace WebCore {
 
-SplitElementCommand::SplitElementCommand(PassRefPtr<Element> element, PassRefPtr<Node> atChild)
+SplitElementCommand::SplitElementCommand(PassRefPtrWillBeRawPtr<Element> element, PassRefPtrWillBeRawPtr<Node> atChild)
     : SimpleEditCommand(element->document())
     , m_element2(element)
     , m_atChild(atChild)
@@ -108,4 +108,12 @@ void SplitElementCommand::doReapply()
     executeApply();
 }
 
+void SplitElementCommand::trace(Visitor* visitor)
+{
+    visitor->trace(m_element1);
+    visitor->trace(m_element2);
+    visitor->trace(m_atChild);
+    SimpleEditCommand::trace(visitor);
+}
+
 } // namespace WebCore