Fix license metadata for ppapi

tools/licenses.py

 #!/usr/bin/env python
 # 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.
 
 """Utility for checking and processing licensing information in third_party
 directories.
 
 Usage: licenses.py <command>
 
@@ skipping 77 matching lines @@
 ])
 
 # Directories we don't scan through.
 PRUNE_DIRS = ('.svn', '.git',             # VCS metadata
               'out', 'Debug', 'Release',  # build files
               'layout_tests')             # lots of subdirs
 
 ADDITIONAL_PATHS = (
     os.path.join('googleurl'),
     os.path.join('native_client_sdk'),
+    os.path.join('ppapi'),
     # The directory with the word list for Chinese and Japanese segmentation
     # with different license terms than ICU.
     os.path.join('third_party','icu','source','data','brkitr'),
     # Fake directory so we can include the strongtalk license.
     os.path.join('v8', 'strongtalk'),
 )
 
 
 # Directories where we check out directly from upstream, and therefore
 # can't provide a README.chromium.  Please prefer a README.chromium
@@ skipping 282 matching lines @@
     elif command == 'credits':
         if not GenerateCredits():
             return 1
     else:
         print __doc__
         return 1
 
 
 if __name__ == '__main__':
   sys.exit(main())