Fix gclient runhooks on Windows for a full checkout.

runtime/tools/generate_projects.py

 #!/usr/bin/env python
 
 # Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 import os
 import sys
 
 # Change into the dart directory as we want the project to be rooted here.
 runtime_src = os.path.join(os.path.dirname(sys.argv[0]), os.pardir)
 gclient_src = os.path.join(runtime_src, os.pardir)
 project_src = os.path.join(gclient_src, sys.argv[1])
 os.chdir(project_src)
 
 # Add gyp to the imports and if needed get it from the third_party location
 # inside the standalone dart gclient checkout.
 try:
   import gyp
 except ImportError, e:
   sys.path.append(os.path.join(os.pardir, 'third_party', 'gyp', 'pylib'))
   import gyp
 
 if __name__ == '__main__':
-  args = ['--depth', '.']
+  args = ['--depth', '..']
   args += ['dart-runtime.gyp']
 
   # Generate the projects.
   sys.exit(gyp.main(args))