Have EditCommand classes deal with Document references, not pointers

Source/core/editing/InputMethodController.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  *
  * 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
@@ skipping 187 matching lines @@
     // Dispatch a compositionend event to the focused node.
     // We should send this event before sending a TextEvent as written in Section 6.2.2 and 6.2.3 of
     // the DOM Event specification.
     if (Element* target = m_frame->document()->focusedElement()) {
         RefPtr<CompositionEvent> event = CompositionEvent::create(eventNames().compositionendEvent, m_frame->domWindow(), text);
         target->dispatchEvent(event, IGNORE_EXCEPTION);
     }
 
     // If text is empty, then delete the old composition here. If text is non-empty, InsertTextCommand::input
     // will delete the old composition with an optimized replace operation.
-    if (text.isEmpty() && mode != CancelComposition)
-        TypingCommand::deleteSelection(m_frame->document(), 0);
+    if (text.isEmpty() && mode != CancelComposition) {
+        ASSERT(m_frame->document());
+        TypingCommand::deleteSelection(*m_frame->document(), 0);
+    }
 
     m_compositionNode = 0;
     m_customCompositionUnderlines.clear();
 
     insertTextForConfirmedComposition(text);
 
     if (mode == CancelComposition) {
         // An open typing command that disagrees about current selection would cause issues with typing later on.
         TypingCommand::closeTyping(m_frame);
     }
@@ skipping 44 matching lines @@
                 event = CompositionEvent::create(eventNames().compositionupdateEvent, m_frame->domWindow(), text);
             else
                 event = CompositionEvent::create(eventNames().compositionendEvent, m_frame->domWindow(), text);
         }
         if (event.get())
             target->dispatchEvent(event, IGNORE_EXCEPTION);
     }
 
     // If text is empty, then delete the old composition here. If text is non-empty, InsertTextCommand::input
     // will delete the old composition with an optimized replace operation.
-    if (text.isEmpty())
-        TypingCommand::deleteSelection(m_frame->document(), TypingCommand::PreventSpellChecking);
+    if (text.isEmpty()) {
+        ASSERT(m_frame->document());
+        TypingCommand::deleteSelection(*m_frame->document(), TypingCommand::PreventSpellChecking);
+    }
 
     m_compositionNode = 0;
     m_customCompositionUnderlines.clear();
 
     if (!text.isEmpty()) {
-        TypingCommand::insertText(m_frame->document(), text, TypingCommand::SelectInsertedText | TypingCommand::PreventSpellChecking, TypingCommand::TextCompositionUpdate);
+        ASSERT(m_frame->document());
+        TypingCommand::insertText(*m_frame->document(), text, TypingCommand::SelectInsertedText | TypingCommand::PreventSpellChecking, TypingCommand::TextCompositionUpdate);
 
         // Find out what node has the composition now.
         Position base = m_frame->selection()->base().downstream();
         Position extent = m_frame->selection()->extent();
         Node* baseNode = base.deprecatedNode();
         unsigned baseOffset = base.deprecatedEditingOffset();
         Node* extentNode = extent.deprecatedNode();
         unsigned extentOffset = extent.deprecatedEditingOffset();
 
         if (baseNode && baseNode == extentNode && baseNode->isTextNode() && baseOffset + text.length() == extentOffset) {
@@ skipping 78 matching lines @@
 
 bool InputMethodController::setSelectionOffsets(const PlainTextOffsets& selectionOffsets)
 {
     if (selectionOffsets.isNull())
         return false;
     // FIXME: We should move Editor::setSelectionOffsets() into InputMethodController class.
     return editor().setSelectionOffsets(selectionOffsets.start(), selectionOffsets.end());
 }
 
 } // namespace WebCore