Switch Mac Intel GPU jobs to target 10.12 bots instead of 10.10.

content/test/gpu/generate_buildbot_json.py

 #!/usr/bin/env python
 # Copyright 2016 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.
 
 """Script to generate chromium.gpu.json and chromium.gpu.fyi.json in
 the src/testing/buildbot directory. Maintaining these files by hand is
 too unwieldy.
 """
 
@@ skipping 36 matching lines @@
         },
       ],
       'build_config': 'Debug',
       'swarming': True,
       'os_type': 'win',
     },
     'Mac 10.10 Release (Intel)': {
       'swarming_dimensions': [
         {
           'gpu': '8086:0a2e',
-          'os': 'Mac-10.10'
+          'os': 'Mac-10.12'
         },
       ],
       'build_config': 'Release',
       'swarming': True,
       'os_type': 'mac',
     },
     'Mac 10.10 Debug (Intel)': {
       'swarming_dimensions': [
         {
           'gpu': '8086:0a2e',
-          'os': 'Mac-10.10'
+          'os': 'Mac-10.12'
         },
       ],
       'build_config': 'Debug',
       'swarming': True,
       'os_type': 'mac',
     },
     'Mac 10.10 Retina Release (AMD)': {
       'swarming_dimensions': [
         {
           'gpu': '1002:6821',
@@ skipping 237 matching lines @@
         },
       ],
       'build_config': 'Debug_x64',
       'swarming': True,
       'os_type': 'win',
     },
     'Mac 10.10 Release (Intel)': {
       'swarming_dimensions': [
         {
           'gpu': '8086:0a2e',
-          'os': 'Mac-10.10'
+          'os': 'Mac-10.12'
         },
       ],
       'build_config': 'Release',
       'swarming': True,
       'os_type': 'mac',
     },
     'Mac 10.10 Debug (Intel)': {
       'swarming_dimensions': [
         {
           'gpu': '8086:0a2e',
-          'os': 'Mac-10.10'
+          'os': 'Mac-10.12'
         },
       ],
       'build_config': 'Debug',
       'swarming': True,
       'os_type': 'mac',
     },
     'Mac 10.10 Release (AMD)': {
       'swarming_dimensions': [
         {
           'gpu': '1002:679e',
@@ skipping 78 matching lines @@
       'build_config': 'Release',
       # This bot is a one-off for testing purposes.
       'swarming': False,
       'os_type': 'mac',
     },
     'Mac GPU ASAN Release': {
       # This bot spawns jobs on multiple GPU types.
       'swarming_dimensions': [
         {
           'gpu': '8086:0a2e',
-          'os': 'Mac-10.10'
+          'os': 'Mac-10.12'
         },
         {
           'gpu': '1002:6821',
           'hidpi': '1',
           'os': 'Mac'
         },
       ],
       'build_config': 'Release',
       'swarming': True,
       'os_type': 'mac',
@@ skipping 236 matching lines @@
         },
       ],
       'build_config': 'Release',
       'swarming': True,
       'os_type': 'win',
     },
     'Optional Mac 10.10 Release (Intel)': {
       'swarming_dimensions': [
         {
           'gpu': '8086:0a2e',
-          'os': 'Mac-10.10'
+          'os': 'Mac-10.12'
         },
       ],
       'build_config': 'Release',
       'swarming': True,
       'os_type': 'mac',
     },
     'Optional Mac Retina Release': {
       'swarming_dimensions': [
         {
           'gpu': '10de:0fe9',
@@ skipping 1002 matching lines @@
     json.dump(tests, fp, indent=2, separators=(',', ': '), sort_keys=True)
     fp.write('\n')
 
 def main():
   generate_all_tests(FYI_WATERFALL, True)
   generate_all_tests(WATERFALL, False)
   return 0
 
 if __name__ == "__main__":
   sys.exit(main())