Make AttachBehavior a required argument.

Source/core/editing/WrapContentsInDummySpanCommand.cpp

Index: Source/core/editing/WrapContentsInDummySpanCommand.cpp
diff --git a/Source/core/editing/WrapContentsInDummySpanCommand.cpp b/Source/core/editing/WrapContentsInDummySpanCommand.cpp
index 67b029f8be644ace969499591e17909e753d2744..b0b63a988f7a395b9e2cc38f4e427aedd67531f4 100644
--- a/Source/core/editing/WrapContentsInDummySpanCommand.cpp
+++ b/Source/core/editing/WrapContentsInDummySpanCommand.cpp
@@ -47,9 +47,9 @@ void WrapContentsInDummySpanCommand::executeApply()
 
     size_t size = children.size();
     for (size_t i = 0; i < size; ++i)
-        m_dummySpan->appendChild(children[i].release(), IGNORE_EXCEPTION);
+        m_dummySpan->appendChild(children[i].release(), IGNORE_EXCEPTION, DeprecatedAttachNow);
 
-    m_element->appendChild(m_dummySpan.get(), IGNORE_EXCEPTION);
+    m_element->appendChild(m_dummySpan.get(), IGNORE_EXCEPTION, DeprecatedAttachNow);
 }
 
 void WrapContentsInDummySpanCommand::doApply()
@@ -72,7 +72,7 @@ void WrapContentsInDummySpanCommand::doUnapply()
 
     size_t size = children.size();
     for (size_t i = 0; i < size; ++i)
-        m_element->appendChild(children[i].release(), IGNORE_EXCEPTION);
+        m_element->appendChild(children[i].release(), IGNORE_EXCEPTION, DeprecatedAttachNow);
 
     m_dummySpan->remove(IGNORE_EXCEPTION);
 }