Add cr_cronet.py stack command to symbolize native stack from adb logcat.

components/cronet/tools/cr_cronet.py

 #!/usr/bin/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.
 
 """
 cr_cronet.py - cr - like helper tool for cronet developers
 """
 
 import argparse
@@ skipping 22 matching lines @@
 
 
 def debug(extra_options):
   return run ('build/android/adb_gdb --start ' + \
               '--activity=.CronetTestActivity ' + \
               '--program-name=CronetTest ' + \
               '--package-name=org.chromium.cronet_test_apk ' + \
               ' '.join(extra_options))
 
 
+def stack(out_dir):
+  return run ('adb logcat -d | third_party/android_tools/ndk/ndk-stack ' + \
+              '-sym ' + out_dir + '/lib')
+
+
 def main():
   parser = argparse.ArgumentParser()
   parser.add_argument('command',
                       choices=['gyp',
                                'sync',
                                'build',
                                'install',
                                'proguard',
                                'test',
                                'build-test',
+                               'stack',
                                'debug',
                                'build-debug'])
   parser.add_argument('-r', '--release', action='store_true',
                       help='use release configuration')
 
   options, extra_options_list = parser.parse_known_args()
   print options
   print extra_options_list
   gyp_defines = 'GYP_DEFINES="OS=android enable_websockets=0 '+ \
       'disable_file_support=1 disable_ftp_support=1 '+ \
@@ skipping 13 matching lines @@
     return build(out_dir)
   if (options.command=='install'):
     return install(release_arg)
   if (options.command=='proguard'):
     return run ('ninja -C ' + out_dir + ' cronet_sample_proguard_apk')
   if (options.command=='test'):
     return install(release_arg) or test(release_arg, extra_options)
   if (options.command=='build-test'):
     return build(out_dir) or install(release_arg) or \
         test(release_arg, extra_options)
+  if (options.command=='stack'):
+    return stack(out_dir)
   if (options.command=='debug'):
     return install(release_arg) or debug(extra_options)
   if (options.command=='build-debug'):
     return build(out_dir) or install(release_arg) or debug(extra_options)
 
   parser.print_help()
   return 1
 
 
 if __name__ == '__main__':
   sys.exit(main())