Create a top-level "third_party" directory

This directory now contains third_party software that is vendored into
the Servo source tree. The idea is that it would eventually hold
webrender and other crates from mozilla-central as well with a standard
patch management approach for each.

components/script/dom/bindings/codegen/parser/runtests.py

@@ -1,79 +0,0 @@
-# This Source Code Form is subject to the terms of the Mozilla Public
-# License, v. 2.0. If a copy of the MPL was not distributed with this
-# file, You can obtain one at https://mozilla.org/MPL/2.0/.
-
-import os, sys
-import glob
-import optparse
-import traceback
-import WebIDL
-
-class TestHarness(object):
-    def __init__(self, test, verbose):
-        self.test = test
-        self.verbose = verbose
-        self.printed_intro = False
-
-    def start(self):
-        if self.verbose:
-            self.maybe_print_intro()
-
-    def finish(self):
-        if self.verbose or self.printed_intro:
-            print("Finished test %s" % self.test)
-
-    def maybe_print_intro(self):
-        if not self.printed_intro:
-            print("Starting test %s" % self.test)
-            self.printed_intro = True
-
-    def test_pass(self, msg):
-        if self.verbose:
-            print("TEST-PASS | %s" % msg)
-
-    def test_fail(self, msg):
-        self.maybe_print_intro()
-        print("TEST-UNEXPECTED-FAIL | %s" % msg)
-
-    def ok(self, condition, msg):
-        if condition:
-            self.test_pass(msg)
-        else:
-            self.test_fail(msg)
-
-    def check(self, a, b, msg):
-        if a == b:
-            self.test_pass(msg)
-        else:
-            self.test_fail(msg)
-            print("\tGot %s expected %s" % (a, b))
-
-def run_tests(tests, verbose):
-    testdir = os.path.join(os.path.dirname(__file__), 'tests')
-    if not tests:
-        tests = glob.iglob(os.path.join(testdir, "*.py"))
-    sys.path.append(testdir)
-
-    for test in tests:
-        (testpath, ext) = os.path.splitext(os.path.basename(test))
-        _test = __import__(testpath, globals(), locals(), ['WebIDLTest'])
-
-        harness = TestHarness(test, verbose)
-        harness.start()
-        try:
-            _test.WebIDLTest.__call__(WebIDL.Parser(), harness)
-        except Exception as ex:
-            print("TEST-UNEXPECTED-FAIL | Unhandled exception in test %s: %s" % (testpath, ex))
-            traceback.print_exc()
-        finally:
-            harness.finish()
-
-if __name__ == '__main__':
-    usage = """%prog [OPTIONS] [TESTS]
-               Where TESTS are relative to the tests directory."""
-    parser = optparse.OptionParser(usage=usage)
-    parser.add_option('-q', '--quiet', action='store_false', dest='verbose', default=True,
-                      help="Don't print passing tests.")
-    options, tests = parser.parse_args()
-
-    run_tests(tests, verbose=options.verbose)