Mojo: Add a utility to compare old mojom_bindings_generator.py output to the current one.

mojo/public/tools/bindings/pylib/mojom_tests/support/find_files.py

Index: mojo/public/tools/bindings/pylib/mojom_tests/support/find_files.py
diff --git a/mojo/public/tools/bindings/pylib/mojom_tests/support/find_files.py b/mojo/public/tools/bindings/pylib/mojom_tests/support/find_files.py
new file mode 100644
index 0000000000000000000000000000000000000000..00524a2413a2c716c9909e5a278d9206118c755b
--- /dev/null
+++ b/mojo/public/tools/bindings/pylib/mojom_tests/support/find_files.py
@@ -0,0 +1,32 @@
+# 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.
+
+from fnmatch import filter
+from os import walk
+from os.path import join
+import sys
+
+
+def FindFiles(top, pattern, **kwargs):
+  """Finds files under |top| matching the glob pattern |pattern|, returning a
+  list of paths."""
+  matches = []
+  for dirpath, _, filenames in walk(top, **kwargs):
+    for filename in filter(filenames, pattern):
+      matches.append(join(dirpath, filename))
+  return matches
+
+
+def main(argv):
+  if len(argv) != 3:
+    print "usage: %s path pattern" % argv[0]
+    return 1
+
+  for filename in FindFiles(argv[1], argv[2]):
+    print filename
+  return 0
+
+
+if __name__ == '__main__':
+  sys.exit(main(sys.argv))