Remove some unused functions in core

Source/core/editing/EditCommand.cpp

 /*
  * Copyright (C) 2005, 2006, 2007 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 26 matching lines @@
 EditCommand::EditCommand(Document& document)
     : m_document(&document)
     , m_parent(nullptr)
 {
     ASSERT(m_document);
     ASSERT(m_document->frame());
     setStartingSelection(m_document->frame()->selection().selection());
     setEndingSelection(m_startingSelection);
 }
 
-EditCommand::EditCommand(Document* document, const VisibleSelection& startingSelection, const VisibleSelection& endingSelection)
-    : m_document(document)
-    , m_parent(nullptr)
-{
-    ASSERT(m_document);
-    ASSERT(m_document->frame());
-    setStartingSelection(startingSelection);
-    setEndingSelection(endingSelection);
-}
-
 EditCommand::~EditCommand()
 {
 }
 
 EditAction EditCommand::editingAction() const
 {
     return EditActionUnspecified;
 }
 
 static inline EditCommandComposition* compositionIfPossible(EditCommand* command)
 {
     if (!command->isCompositeEditCommand())
         return 0;
     return toCompositeEditCommand(command)->composition();
 }
 
 void EditCommand::setStartingSelection(const VisibleSelection& selection)
 {
     for (EditCommand* command = this; ; command = command->m_parent) {
         if (EditCommandComposition* composition = compositionIfPossible(command)) {
             ASSERT(command->isTopLevelCommand());
             composition->setStartingSelection(selection);
         }
         command->m_startingSelection = selection;
         if (!command->m_parent || command->m_parent->isFirstCommand(command))
             break;
     }
 }
 
-void EditCommand::setStartingSelection(const VisiblePosition& position)
-{
-    setStartingSelection(VisibleSelection(position));
-}
-
 void EditCommand::setEndingSelection(const VisibleSelection& selection)
 {
     for (EditCommand* command = this; command; command = command->m_parent) {
         if (EditCommandComposition* composition = compositionIfPossible(command)) {
             ASSERT(command->isTopLevelCommand());
             composition->setEndingSelection(selection);
         }
         command->m_endingSelection = selection;
     }
 }
@@ skipping 21 matching lines @@
 
 void EditCommand::trace(Visitor* visitor)
 {
     visitor->trace(m_document);
     visitor->trace(m_startingSelection);
     visitor->trace(m_endingSelection);
     visitor->trace(m_parent);
 }
 
 } // namespace blink