Remove more #includes from Frame.h

Source/core/editing/TextInsertionBaseCommand.cpp

 /*
  * Copyright (C) 2012 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 12 matching lines @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
  */
 
 #include "config.h"
 #include "TextInsertionBaseCommand.h"
 
 #include "BeforeTextInsertedEvent.h"
 #include "Document.h"
 #include "Element.h"
 #include "Frame.h"
+#include "FrameSelection.h"
 #include "Node.h"
 
 namespace WebCore {
 
 TextInsertionBaseCommand::TextInsertionBaseCommand(Document* document)
     : CompositeEditCommand(document)
 {
 }
 
 void TextInsertionBaseCommand::applyTextInsertionCommand(Frame* frame, PassRefPtr<TextInsertionBaseCommand> command, const VisibleSelection& selectionForInsertion, const VisibleSelection& endingSelection)
@@ skipping 32 matching lines @@
     Node* node = selection.rootEditableElement();
     if (!node)
         return false;
     
     RefPtr<BeforeTextInsertedEvent> event = BeforeTextInsertedEvent::create(String("\n"));
     node->dispatchEvent(event, IGNORE_EXCEPTION);
     return event->text().length();
 }
 
 }