Allow drag-and-drop of zipped extensions on chrome://extensions

chrome/browser/extensions/sandboxed_unpacker.h

 // Copyright (c) 2012 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_BROWSER_EXTENSIONS_SANDBOXED_UNPACKER_H_
 #define CHROME_BROWSER_EXTENSIONS_SANDBOXED_UNPACKER_H_
 
 #include <string>
 
 #include "base/files/file_path.h"
@@ skipping 201 matching lines @@
 
   // The root directory of the unpacked extension. This is a child of temp_dir_.
   base::FilePath extension_root_;
 
   // Represents the extension we're unpacking.
   scoped_refptr<Extension> extension_;
 
   // Whether we've received a response from the utility process yet.
   bool got_response_;
 
+  // Whether we're unpacking a zip file instead of a signed CRX.
+  bool is_zipfile_;
+
   // The public key that was extracted from the CRX header.
   std::string public_key_;
 
   // The extension's ID. This will be calculated from the public key in the crx
   // header.
   std::string extension_id_;
 
   // Time at which unpacking started. Used to compute the time unpacking takes.
   base::TimeTicks unpack_start_time_;
 
   // Location to use for the unpacked extension.
   Manifest::Location location_;
 
   // Creation flags to use for the extension.  These flags will be used
   // when calling Extenion::Create() by the crx installer.
   int creation_flags_;
 
   // Sequenced task runner where file I/O operations will be performed at.
   scoped_refptr<base::SequencedTaskRunner> unpacker_io_task_runner_;
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_SANDBOXED_UNPACKER_H_