Start refactoring to reduce executable type knowledge.

courgette/disassembler.h

-// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef COURGETTE_DISASSEMBLER_H_
 #define COURGETTE_DISASSEMBLER_H_
 
 #include "base/basictypes.h"
 
 namespace courgette {
 
 class AssemblyProgram;
 class PEInfo;
 
 class Disassembler {
  public:
-  // Factory methods for making disassemblers for various kinds of executables.
-  // We have only one so far.
-
-  static Disassembler* MakeDisassemberWin32X86(PEInfo* pe_info);
+  virtual ~Disassembler() {}
 
   // Disassembles the item passed to the factory method into the output
   // parameter 'program'.
   virtual bool Disassemble(AssemblyProgram* program) = 0;
 
-  // Deletes 'this' disassembler.
-  virtual void Destroy() = 0;
-
  protected:
   Disassembler() {}
-  virtual ~Disassembler() {}
 
  private:
   DISALLOW_COPY_AND_ASSIGN(Disassembler);
 };
 
 }  // namespace courgette
 #endif  // COURGETTE_DISASSEMBLER_H_