Oilpan: move editing objects to the heap.

Source/core/editing/MergeIdenticalElementsCommand.cpp

Index: Source/core/editing/MergeIdenticalElementsCommand.cpp
diff --git a/Source/core/editing/MergeIdenticalElementsCommand.cpp b/Source/core/editing/MergeIdenticalElementsCommand.cpp
index e512319ee524712abe1c4714ee218b1a5f017431..da7214bc40500fa5d7642c0357d30613ad9d3773 100644
--- a/Source/core/editing/MergeIdenticalElementsCommand.cpp
+++ b/Source/core/editing/MergeIdenticalElementsCommand.cpp
@@ -32,7 +32,7 @@
 
 namespace WebCore {
 
-MergeIdenticalElementsCommand::MergeIdenticalElementsCommand(PassRefPtr<Element> first, PassRefPtr<Element> second)
+MergeIdenticalElementsCommand::MergeIdenticalElementsCommand(PassRefPtrWillBeRawPtr<Element> first, PassRefPtrWillBeRawPtr<Element> second)
     : SimpleEditCommand(first->document())
     , m_element1(first)
     , m_element2(second)
@@ -86,4 +86,12 @@ void MergeIdenticalElementsCommand::doUnapply()
         m_element1->appendChild(children[i].release(), exceptionState);
 }
 
+void MergeIdenticalElementsCommand::trace(Visitor* visitor)
+{
+    visitor->trace(m_element1);
+    visitor->trace(m_element2);
+    visitor->trace(m_atChild);
+    SimpleEditCommand::trace(visitor);
+}
+
 } // namespace WebCore