Have EditCommand classes deal with Document references, not pointers

Source/core/editing/SpellingCorrectionCommand.cpp

 /*
  * Copyright (C) 2011 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 17 matching lines @@
 
 #include "core/dom/Document.h"
 #include "core/editing/InsertTextCommand.h"
 #include "core/editing/SetSelectionCommand.h"
 #include "core/editing/TextIterator.h"
 #include "core/page/Frame.h"
 
 namespace WebCore {
 
 SpellingCorrectionCommand::SpellingCorrectionCommand(PassRefPtr<Range> rangeToBeCorrected, const String& correction)
-    : CompositeEditCommand(&rangeToBeCorrected->startContainer()->document())
+    : CompositeEditCommand(rangeToBeCorrected->startContainer()->document())
     , m_rangeToBeCorrected(rangeToBeCorrected)
     , m_selectionToBeCorrected(m_rangeToBeCorrected.get())
     , m_correction(correction)
 {
 }
 
 void SpellingCorrectionCommand::doApply()
 {
     m_corrected = plainText(m_rangeToBeCorrected.get());
     if (!m_corrected.length())
         return;
 
-    if (!document()->frame()->selection()->shouldChangeSelection(m_selectionToBeCorrected))
+    if (!document().frame()->selection()->shouldChangeSelection(m_selectionToBeCorrected))
         return;
 
     applyCommandToComposite(SetSelectionCommand::create(m_selectionToBeCorrected, FrameSelection::SpellCorrectionTriggered | FrameSelection::CloseTyping | FrameSelection::ClearTypingStyle));
     applyCommandToComposite(InsertTextCommand::create(document(), m_correction));
 }
 
 bool SpellingCorrectionCommand::shouldRetainAutocorrectionIndicator() const
 {
     return true;
 }
 
 } // namespace WebCore