customtabs: Update the benchmark app for hidden tab benchmarking.

tools/android/customtabs_benchmark/scripts/customtabs_benchmark.py

 #!/usr/bin/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.
 
 """Loops Custom Tabs tests and outputs the results into a CSV file."""
 
 import collections
 import contextlib
@@ skipping 180 matching lines @@
 
   Args:
     filename: (str) file to process.
 
   Returns:
     A numpy structured array.
   """
   import numpy as np
   data = np.genfromtxt(filename, delimiter=',', skip_header=1)
   result = np.array(np.zeros(len(data)),
-                    dtype=[('warmup', bool), ('speculation_mode', np.int32),
+                    dtype=[('warmup', bool), ('speculation_mode', str),
                            ('delay_to_may_launch_url', np.int32),
                            ('delay_to_launch_url', np.int32),
                            ('commit', np.int32), ('plt', np.int32),
                            ('first_contentful_paint', np.int32)])
   result['warmup'] = data[:, 0]
   result['speculation_mode'] = data[:, 1]
   result['delay_to_may_launch_url'] = data[:, 2]
   result['delay_to_launch_url'] = data[:, 3]
   result['commit'] = data[:, 4]
   result['plt'] = data[:, 5]
   result['first_contentful_paint'] = data[:, 6]
   return result
 
 
 def _CreateOptionParser():
   parser = optparse.OptionParser(description='Loops Custom Tabs tests on a '
                                  'device, and outputs the navigation timings '
                                  'in a CSV file.')
   parser.add_option('--device', help='Device ID')
   parser.add_option('--url', help='URL to navigate to.',
                     default='https://www.android.com')
   parser.add_option('--warmup', help='Call warmup.', default=False,
                     action='store_true')
   parser.add_option('--speculation_mode', default='prerender',
-                    help='The speculation mode (prerender, disabled, '
+                    help='The speculation mode (prerender, '
                     'speculative_prefetch or no_state_prefetch).',
-                    choices=['prerender', 'disabled', 'speculative_prefetch',
-                             'no_state_prefetch'])
+                    choices=['disabled', 'prerender', 'hidden_tab'])
   parser.add_option('--delay_to_may_launch_url',
                     help='Delay before calling mayLaunchUrl() in ms.',
                     type='int', default=1000)
   parser.add_option('--delay_to_launch_url',
                     help='Delay before calling launchUrl() in ms.',
                     type='int', default=-1)
   parser.add_option('--cold', help='Purge the page cache before each run.',
                     default=False, action='store_true')
   parser.add_option('--output_file', help='Output file (append). "-" for '
                     'stdout')
@@ skipping 56 matching lines @@
       'delay_to_launch_url': options.delay_to_launch_url,
       'cold': options.cold,
   }
   LoopOnDevice(device, [config], options.output_file, options.wpr_archive,
                options.record, options.network_condition, options.wpr_log,
                once=options.once)
 
 
 if __name__ == '__main__':
   main()