Have EditCommand classes deal with Document references, not pointers

Source/core/editing/CreateLinkCommand.cpp

Index: Source/core/editing/CreateLinkCommand.cpp
diff --git a/Source/core/editing/CreateLinkCommand.cpp b/Source/core/editing/CreateLinkCommand.cpp
index d21924bbc1c2c804f738092837faa0b227236a9a..4ac85b7300d949d5ec43610b22e13b287a65cff8 100644
--- a/Source/core/editing/CreateLinkCommand.cpp
+++ b/Source/core/editing/CreateLinkCommand.cpp
@@ -31,7 +31,7 @@
 
 namespace WebCore {
 
-CreateLinkCommand::CreateLinkCommand(Document* document, const String& url)
+CreateLinkCommand::CreateLinkCommand(Document& document, const String& url)
     : CompositeEditCommand(document)
 {
     m_url = url;
@@ -42,14 +42,14 @@ void CreateLinkCommand::doApply()
     if (endingSelection().isNone())
         return;
 
-    RefPtr<HTMLAnchorElement> anchorElement = HTMLAnchorElement::create(document());
+    RefPtr<HTMLAnchorElement> anchorElement = HTMLAnchorElement::create(&document());
     anchorElement->setHref(m_url);
 
     if (endingSelection().isRange())
         applyStyledElement(anchorElement.get());
     else {
         insertNodeAt(anchorElement.get(), endingSelection().start());
-        RefPtr<Text> textNode = Text::create(document(), m_url);
+        RefPtr<Text> textNode = Text::create(&document(), m_url);
         appendNode(textNode.get(), anchorElement.get());
         setEndingSelection(VisibleSelection(positionInParentBeforeNode(anchorElement.get()), positionInParentAfterNode(anchorElement.get()), DOWNSTREAM, endingSelection().isDirectional()));
     }