Rename class EditCommandComposition to UndoStep

third_party/WebKit/Source/core/editing/commands/CompositeEditCommand.cpp

 /*
  * Copyright (C) 2005, 2006, 2007, 2008 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 120 matching lines @@
   }
 
   // Only need to call appliedEditing for top-level commands, and TypingCommands
   // do it on their own (see TypingCommand::typingAddedToOpenCommand).
   if (!isTypingCommand())
     frame->editor().appliedEditing(this);
   setShouldRetainAutocorrectionIndicator(false);
   return !editingState.isAborted();
 }
 
-EditCommandComposition* CompositeEditCommand::ensureComposition() {
+UndoStep* CompositeEditCommand::ensureComposition() {
   CompositeEditCommand* command = this;
   while (command && command->parent())
     command = command->parent();
-  if (!command->m_composition)
-    command->m_composition = EditCommandComposition::create(
-        &document(), startingSelection(), endingSelection(), inputType());
+  if (!command->m_composition) {
+    command->m_composition = UndoStep::create(&document(), startingSelection(),
+                                              endingSelection(), inputType());
+  }
   return command->m_composition.get();
 }
 
 bool CompositeEditCommand::preservesTypingStyle() const {
   return false;
 }
 
 bool CompositeEditCommand::isTypingCommand() const {
   return false;
 }
@@ skipping 1771 matching lines @@
   return node;
 }
 
 DEFINE_TRACE(CompositeEditCommand) {
   visitor->trace(m_commands);
   visitor->trace(m_composition);
   EditCommand::trace(visitor);
 }
 
 }  // namespace blink