Enable downloading archive only for Desktop builds

tools/run-bisect-perf-regression.py

 #!/usr/bin/env python
 # Copyright (c) 2013 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.
 
 """Run Performance Test Bisect Tool
 
 This script is used by a trybot to run the src/tools/bisect-perf-regression.py
 script with the parameters specified in run-bisect-perf-regression.cfg. It will
 check out a copy of the depot in a subdirectory 'bisect' of the working
@@ skipping 375 matching lines @@
       cmd.extend(['--target_platform', 'android-chrome'])
     else:
       cmd.extend(['--target_platform', 'android'])
 
   if path_to_goma:
     cmd.append('--use_goma')
 
   if path_to_extra_src:
     cmd.extend(['--extra_src', path_to_extra_src])
 
+  # These flags are used to download build archives from cloud storage if
+  # available, otherwise will post a try_job_http request to build it on
+  # tryserver.
+  if config.get('gs_bucket'):
+    if config.get('builder_host') and config.get('builder_port'):
+      cmd.extend(['--gs_bucket', config['gs_bucket'],
+                  '--builder_host', config['builder_host'],
+                  '--builder_port', config['builder_port']
+                 ])
+    else:
+      print ('Error: Specified gs_bucket, but missing builder_host or '
+             'builder_port information in config.')
+      return 1
+
+    cmd.extend(['-r', config['repeat_count']])
+
   if dry_run:
     cmd.extend(['--debug_ignore_build', '--debug_ignore_sync',
         '--debug_ignore_perf_test'])
   cmd = [str(c) for c in cmd]
 
   with Goma(path_to_goma) as goma:
     return_code = subprocess.call(cmd)
 
   if return_code:
     print 'Error: bisect-perf-regression.py returned with error %d' %\
@@ skipping 30 matching lines @@
                     help='Path to extra source file. If this is supplied, '
                     'bisect script will use this to override default behavior.')
   parser.add_option('--dry_run',
                     action="store_true",
                     help='The script will perform the full bisect, but '
                     'without syncing, building, or running the performance '
                     'tests.')
   (opts, args) = parser.parse_args()
 
   path_to_current_directory = os.path.abspath(os.path.dirname(sys.argv[0]))
-
+  import pdb; pdb.set_trace()
   # If they've specified their own config file, use that instead.
   if opts.path_to_config:
     path_to_bisect_cfg = opts.path_to_config
   else:
     path_to_bisect_cfg = os.path.join(path_to_current_directory,
         'run-bisect-perf-regression.cfg')
 
   config = _LoadConfigFile(path_to_bisect_cfg)
 
   # Check if the config is valid.
@@ skipping 29 matching lines @@
             opts.path_to_goma)
 
     print 'Error: Could not load config file. Double check your changes to '\
           'run-bisect-perf-regression.cfg/run-perf-test.cfg for syntax errors.'
     print
     return 1
 
 
 if __name__ == '__main__':
   sys.exit(main())