Clean up some discrepancies in the perf recipe configs

scripts/slave/recipe_modules/chromium_tests/tryserver_chromium_perf.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
 
 import DEPS
 CHROMIUM_CONFIG_CTX = DEPS['chromium'].CONFIG_CTX
 GCLIENT_CONFIG_CTX = DEPS['gclient'].CONFIG_CTX
 
@@ skipping 13 matching lines @@
 
 @GCLIENT_CONFIG_CTX(includes=['chromium_perf'])
 def tryserver_chromium_perf(c):
   soln = c.solutions.add()
   soln.name = 'catapult'
   soln.url = ('https://chromium.googlesource.com/external/github.com/'
               'catapult-project/catapult.git')
 
 
 def _AddBuildSpec(name, platform, target_bits=64):
+  # We run sizes with no perf_id for perf tryjobs. http://crbug.com/610772
   SPEC['builders'][name] = chromium_perf.BuildSpec(
       'tryserver_chromium_perf', None, platform, target_bits)
 
 
 def _AddTestSpec(name, platform, target_bits=64):
-  # TODO(dtu): Change this to TestSpec after try job builds are all offloaded
-  # to builders.
-  spec = chromium_perf.BuildSpec(
-      'tryserver_chromium_perf', None, platform, target_bits)
-  del spec['tests']
-  SPEC['builders'][name] = spec
+  SPEC['builders'][name] = chromium_perf.TestSpec(
+      'tryserver_chromium_perf', platform, target_bits)
 
 
 _AddBuildSpec('win_perf_bisect_builder', 'win', target_bits=32)
 _AddBuildSpec('winx64_bisect_builder', 'win')
 _AddBuildSpec('mac_perf_bisect_builder', 'mac')
 _AddBuildSpec('linux_perf_bisect_builder', 'linux')
 
 
 _AddTestSpec('winx64_10_perf_cq', 'win')
 _AddTestSpec('mac_retina_perf_cq', 'mac')
@@ skipping 14 matching lines @@
 _AddTestSpec('winx64ati_perf_bisect', 'win')
 _AddTestSpec('winx64intel_perf_bisect', 'win')
 _AddTestSpec('winx64nvidia_perf_bisect', 'win')
 
 _AddTestSpec('mac_10_11_perf_bisect', 'mac')
 _AddTestSpec('mac_10_10_perf_bisect', 'mac')
 _AddTestSpec('mac_retina_perf_bisect', 'mac')
 _AddTestSpec('mac_hdd_perf_bisect', 'mac')
 
 _AddTestSpec('linux_perf_bisect', 'linux')