Pass mb_mastername and mb_buildername as parameters to override the default.

scripts/slave/recipe_modules/gpu/api.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 recipe_engine.types import freeze
 from recipe_engine import recipe_api
 
 import common
 
 SIMPLE_TESTS_TO_RUN = freeze([
@@ skipping 197 matching lines @@
         # capacity to do so, and on all platforms as soon as ANGLE does.
         isolates += common.WIN_AND_LINUX_ONLY_FYI_ONLY_GPU_ISOLATES
       if self.m.platform.is_win:
         isolates += common.WIN_ONLY_FYI_ONLY_GPU_ISOLATES
     targets = [u'%s_run' % test for test in isolates]
     self.m.isolate.clean_isolated_files(
         self.m.chromium.c.build_dir.join(self.m.chromium.c.build_config_fs))
     if is_tryserver:
       self.m.filter.does_patch_require_compile(
           self.m.tryserver.get_files_affected_by_patch(),
+          self.m.properties['mastername'],
+          self.m.properties['buildername'],
           test_targets=targets,
           additional_names=['chromium'],
           config_file_name='trybot_analyze_config.json')
       if not self.m.filter.compile_targets:
         # Early out if no work to do.
         return
       compile_targets = list(self.m.filter.compile_targets)
       # Re-sort the targets to keep test expectations stable.
       compile_targets.sort()
       try:
@@ skipping 368 matching lines @@
     if extra_browser_args:
       extra_browser_args_string += ' ' + ' '.join(extra_browser_args)
     test_args.append(extra_browser_args_string)
 
     return self.m.chromium_tests.steps.TelemetryGPUTest(
         name, chrome_revision, webkit_revision, args=test_args,
         target_name=target_name, enable_swarming=enable_swarming,
         swarming_dimensions=swarming_dimensions,
         master_class_name=self._master_class_name_for_testing,
         swarming_extra_suffix=self._get_gpu_suffix(swarming_dimensions))