[Android] Add a java method counting script.

build/android/method_count.py

+#! /usr/bin/env python
+# Copyright 2015 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.
+
+import argparse
+import re
+import sys
+
+from pylib.sdk import dexdump
+
+_METHOD_IDS_SIZE_RE = re.compile(r'^method_ids_size +: +(\d+)$')
+
+def MethodCount(dexfile):
+  for line in dexdump.DexDump(dexfile, file_summary=True):
+    m = _METHOD_IDS_SIZE_RE.match(line)
+    if m:
+      return m.group(1)
+  raise Exception('"method_ids_size" not found in dex dump of %s' % dexfile)
+
+def main():
+  parser = argparse.ArgumentParser()
+  parser.add_argument('dexfile')
+
+  args = parser.parse_args()
+
+  print MethodCount(args.dexfile)

[mikecase (-- gone --), 2015/06/19 15:45:26]

Can you use python logging here? Is something going to parse this scripts
stdout?

[jbudorick, 2015/06/19 16:25:56]

this actually needs to use build/util/lib/common/perf_tests_results_helper.py

+  return 0
+
+if __name__ == '__main__':
+  sys.exit(main())
+