Fix chromium perf fyi tester triggering

scripts/slave/recipe_modules/chromium_tests/chromium_perf_fyi.py

 # 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.
 
 from . import chromium_perf
 from . import steps
 
 import DEPS
 CHROMIUM_CONFIG_CTX = DEPS['chromium'].CONFIG_CTX
 GCLIENT_CONFIG_CTX = DEPS['gclient'].CONFIG_CTX
@@ skipping 25 matching lines @@
                  parent_buildername=None, target_bits=64):
   tests = [steps.DynamicPerfTests(
       perf_id, platform, target_bits,
       num_device_shards=1, num_host_shards=1, shard_index=0)]
 
   spec = chromium_perf.TestSpec(
       'chromium_perf', perf_id, platform, target_bits,
       parent_buildername=parent_buildername, tests=tests)
   if not parent_buildername:
     spec['parent_mastername'] = 'chromium.perf'
+  else:
+    spec['parent_mastername'] = 'chromium.perf.fyi'

[ghost stip (do not use), 2016/10/05 20:55:03]

apparently only chromium.perf sets parent_buildername

 
   SPEC['builders'][name] = spec
 
 
 def _AddIsolatedTestSpec(name, perf_id, platform,
                          parent_buildername, target_bits=64):
   spec = chromium_perf.TestSpec('chromium_perf', perf_id, platform, target_bits,
                                 parent_buildername=parent_buildername)
   spec['enable_swarming'] = True
   SPEC['builders'][name] = spec
@@ skipping 14 matching lines @@
 
 _AddTestSpec('Mac Power Dual-GPU Perf', 'mac-power-dual-gpu', 'mac')
 _AddTestSpec('Mac Power Low-End Perf', 'mac-power-low-end', 'mac')
 _AddTestSpec('Mac Test Retina Perf', 'mac-test-retina', 'mac')
 
 
 _AddBuildSpec('Win Clang Builder', 'win-clang-builder', 'win',
               config_name='chromium_perf_clang', target_bits=32)
 _AddTestSpec('Win Clang Perf', 'chromium-win-clang', 'win',
              parent_buildername='Win Clang Builder', target_bits=32)