Unpack extensions inside chrome's directory.

chrome/browser/extensions/sandboxed_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_BROWSER_EXTENSIONS_SANDBOXED_EXTENSION_UNPACKER_H_
 #define CHROME_BROWSER_EXTENSIONS_SANDBOXED_EXTENSION_UNPACKER_H_
 
 #include <string>
 
 #include "base/file_path.h"
@@ skipping 75 matching lines @@
   // The magic character sequence at the beginning of each crx file.
   static const char kExtensionHeaderMagic[];
 
   // The current version of the crx format.
   static const uint32 kCurrentVersion = 2;
 
   // Unpacks the extension in |crx_path| into a temporary directory and calls
   // |client| with the result. If |rdh| is provided, unpacking is done in a
   // sandboxed subprocess. Otherwise, it is done in-process.
   SandboxedExtensionUnpacker(const FilePath& crx_path,
+                             const FilePath& temp_path,
                              ResourceDispatcherHost* rdh,
                              SandboxedExtensionUnpackerClient* cilent);
 
   const GURL& web_origin() const { return web_origin_; }
   void set_web_origin(const GURL& val) {
     web_origin_ = val;
   }
 
   // Start unpacking the extension. The client is called with the results.
   void Start();
@@ skipping 32 matching lines @@
   DictionaryValue* RewriteManifestFile(const DictionaryValue& manifest);
 
   // Overwrites original files with safe results from utility process.
   // Reports error and returns false if it fails.
   bool RewriteImageFiles();
   bool RewriteCatalogFiles();
 
   // The path to the CRX to unpack.
   FilePath crx_path_;
 
+  // A path to a temp dir to unpack in.
+  FilePath temp_path_;
+
   // Our client's thread. This is the thread we respond on.
   ChromeThread::ID thread_identifier_;
 
   // ResourceDispatcherHost to pass to the utility process.
   ResourceDispatcherHost* rdh_;
 
   // Our client.
   scoped_refptr<SandboxedExtensionUnpackerClient> client_;
 
   // A temporary directory to use for unpacking.
@@ skipping 11 matching lines @@
   // The public key that was extracted from the CRX header.
   std::string public_key_;
 
   // If the unpacked extension uses web content, its origin will be set to this
   // value. This is used when an app is self-hosted. The only valid origin is
   // the origin it is served from.
   GURL web_origin_;
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_SANDBOXED_EXTENSION_UNPACKER_H_