Add arm64 target type to bisect jobs

tools/auto_bisect/bisect_perf_regression.py

 #!/usr/bin/env python
 # 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.
 
 """Chromium auto-bisect tool
 
 This script bisects a range of commits using binary search. It starts by getting
 reference values for the specified "good" and "bad" commits. Then, for revisions
 in between, it will get builds, run tests and classify intermediate revisions as
@@ skipping 2688 matching lines @@
                        help='Add a bunch of extra threads for goma, and enable '
                             'goma')
     group.add_argument('--goma_dir',
                        help='Path to goma tools (or system default if not '
                             'specified).')
     group.add_argument('--goma_threads', type=int, default='64',
                        help='Number of threads for goma, only if using goma.')
     group.add_argument('--output_buildbot_annotations', action='store_true',
                        help='Add extra annotation output for buildbot.')
     group.add_argument('--target_arch', default='ia32',
-                       dest='target_arch', choices=['ia32', 'x64', 'arm'],
+                       dest='target_arch',
+                       choices=['ia32', 'x64', 'arm', 'arm64'],
                        help='The target build architecture. Choices are "ia32" '
-                            '(default), "x64" or "arm".')
+                            '(default), "x64", "arm" or "arm64".')
     group.add_argument('--target_build_type', default='Release',
                        choices=['Release', 'Debug', 'Release_x64'],
                        help='The target build type. Choices are "Release" '
                             '(default), Release_x64 or "Debug".')
     group.add_argument('--builder_type', default=fetch_build.PERF_BUILDER,
                        choices=[fetch_build.PERF_BUILDER,
                                 fetch_build.FULL_BUILDER,
                                 fetch_build.ANDROID_CHROME_PERF_BUILDER, ''],
                        help='Type of builder to get build from. This '
                             'determines both the bot that builds and the '
@@ skipping 171 matching lines @@
       # bugs. If you change this, please update the perf dashboard as well.
       bisect_utils.OutputAnnotationStepStart('Results')
     print 'Runtime Error: %s' % e
     if opts.output_buildbot_annotations:
       bisect_utils.OutputAnnotationStepClosed()
   return 1
 
 
 if __name__ == '__main__':
   sys.exit(main())