Down to only 4 dirs that don't pass the license checker.

tools/licenses.py

 #!/usr/bin/python
 # Copyright (c) 2010 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.
 
 """
 Utilities for checking and processing licensing information in third_party
 directories.
 """
 
 import os
 
 # Paths from the root of the tree to directories to skip.
 PRUNE_PATHS = set([
+    # Assume for now that breakpad has their licensing in order.
+    "breakpad",
+
     # This is just a tiny vsprops file, presumably written by the googleurl
     # authors.  Not third-party code.
     "googleurl/third_party/icu",
 
+    # Assume for now that native client has their licensing in order.
+    "native_client",
+
     # We don't bundle o3d samples into our resulting binaries.
     "o3d/samples",
 
+    # Not in the public Chromium tree.
+    "third_party/adobe",
+
     # Written as part of Chromium.
     "third_party/fuzzymatch",
 
     # Two directories that are the same as those in base/third_party.
     "v8/src/third_party/dtoa",
     "v8/src/third_party/valgrind",
 ])
 
 # Directories we don't scan through.
 PRUNE_DIRS = ('.svn', '.git',             # VCS metadata
               'out', 'Debug', 'Release',  # build files
               'layout_tests')             # lots of subdirs
 
 # Directories where we check out directly from upstream, and therefore
 # can't provide a README.chromium.  Please prefer a README.chromium
 # wherever possible.
 SPECIAL_CASES = {
     'third_party/ots': {
         "Name": "OTS (OpenType Sanitizer)",
         "URL": "http://code.google.com/p/ots/",
     },
     'third_party/pywebsocket': {
         "Name": "pywebsocket",
         "URL": "http://code.google.com/p/pywebsocket/",
     },
+    'third_party/WebKit': {
+        "Name": "WebKit",
+        "URL": "http://webkit.org/",
+    },
 }
 
 class LicenseError(Exception):
     """We raise this exception when a directory's licensing info isn't
     fully filled out."""
     pass
 
 
 def ParseDir(path):
     """Examine a third_party/foo component and extract its metadata."""
@@ skipping 50 matching lines @@
 
 def ScanThirdPartyDirs(third_party_dirs):
     """Scan a list of directories and report on any problems we find."""
     errors = []
     for path in sorted(third_party_dirs):
         try:
             metadata = ParseDir(path)
         except LicenseError, e:
             errors.append((path, e.args[0]))
             continue
-        print path, "OK:", metadata["License File"]
-
-    print
 
     for path, error in sorted(errors):
         print path + ": " + error
 
 
 def FindThirdPartyDirs():
     """Find all third_party directories underneath the current directory."""
     third_party_dirs = []
     for path, dirs, files in os.walk('.'):
         path = path[len('./'):]  # Pretty up the path.
@@ skipping 19 matching lines @@
             # Don't recurse into any subdirs from here.
             dirs[:] = []
             continue
 
     return third_party_dirs
 
 
 if __name__ == '__main__':
     third_party_dirs = FindThirdPartyDirs()
     ScanThirdPartyDirs(third_party_dirs)