FBTF: Forward declare and move constructors in chrome/common/extensions/.

chrome/common/extensions/extension_unpacker.h

 // Copyright (c) 2009 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 CHROME_COMMON_EXTENSIONS_EXTENSION_UNPACKER_H_
 #define CHROME_COMMON_EXTENSIONS_EXTENSION_UNPACKER_H_
 #pragma once
 
 #include <string>
 #include <vector>
 
 #include "base/file_path.h"
 #include "base/scoped_ptr.h"
 #include "base/tuple.h"
 
 class DictionaryValue;
 class SkBitmap;
 
 // This class unpacks an extension.  It is designed to be used in a sandboxed
 // child process.  We unpack and parse various bits of the extension, then
 // report back to the browser process, who then transcodes the pre-parsed bits
 // and writes them back out to disk for later use.
 class ExtensionUnpacker {
  public:
   typedef std::vector< Tuple2<SkBitmap, FilePath> > DecodedImages;
 
-  explicit ExtensionUnpacker(const FilePath& extension_path)
-      : extension_path_(extension_path) {}
+  explicit ExtensionUnpacker(const FilePath& extension_path);
+  ~ExtensionUnpacker();
 
   // Install the extension file at |extension_path|.  Returns true on success.
   // Otherwise, error_message will contain a string explaining what went wrong.
   bool Run();
 
   // Write the decoded images to kDecodedImagesFilename.  We do this instead
   // of sending them over IPC, since they are so large.  Returns true on
   // success.
   bool DumpImagesToFile();
 
@@ skipping 57 matching lines @@
   // of _locales/locale, without messages.json base part.
   scoped_ptr<DictionaryValue> parsed_catalogs_;
 
   // The last error message that was set.  Empty if there were no errors.
   std::string error_message_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionUnpacker);
 };
 
 #endif  // CHROME_COMMON_EXTENSIONS_EXTENSION_UNPACKER_H_