Support automatically resolving dependencies in javascript tests.

chrome/browser/resources/chromeos/chromevox/tools/find_js_files.py

+#!/usr/bin/env python
+
+# Copyright 2014 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.
+
+'''Scans one or more directory trees for .js files, printing filenames,
+relative to the current directory on stdout.
+'''
+
+import optparse
+import os
+import sys
+
+_SCRIPT_DIR = os.path.realpath(os.path.dirname(__file__))
+_CHROME_SOURCE = os.path.realpath(
+    os.path.join(_SCRIPT_DIR, *[os.path.pardir] * 6))
+sys.path.insert(
+    0, os.path.join(
+        _CHROME_SOURCE, ('chrome/third_party/chromevox/third_party/' +
+                         'closure-library/closure/bin/build')))
+import treescan
+
+
+def main():
+  parser = optparse.OptionParser(description=__doc__)
+  parser.usage = '%prog <tree_root>...'
+  _, args = parser.parse_args()
+  for root in args:
+    print '\n'.join(treescan.ScanTreeForJsFiles(root))
+
+
+if __name__ == '__main__':
+  main()