[telemetry] Add @RunOnBuildMastersNamed support

tools/perf/benchmarks/netsim_top25.py

 # Copyright 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.
 from telemetry import test
 
 from perf_tools import page_cycler
 
 
+@test.RunOnBuildMastersNamed('chromium.perf')

[tonyg, 2013/07/03 02:15:08]

Does this need to be platform specific? For instance, we run top_mobile_sites on
android and top_25 on desktop?

In any case, I'd recommend renaming this "test.RunOnBuildMaster"

 class NetsimTop25(test.Test):
   """Measures load time of the top 25 sites under simulated cable network."""
   test = page_cycler.PageCycler
   page_set = 'tools/perf/page_sets/top_25.json'
   options = {
     'extra_wpr_args': [
       '--shaping_type=proxy',
       '--net=cable'
       ],
     'pageset_repeat': '5',
     }
 
   def __init__(self):
     super(NetsimTop25, self).__init__()
     self.test.clear_cache_before_each_run = True