Teach Mac GPU ASAN Release that it's using mb.

scripts/slave/recipes/chromium.expected/full_chromium_gpu_fyi_Mac_GPU_ASAN_Release.json

Index: scripts/slave/recipes/chromium.expected/full_chromium_gpu_fyi_Mac_GPU_ASAN_Release.json
diff --git a/scripts/slave/recipes/chromium.expected/full_chromium_gpu_fyi_Mac_GPU_ASAN_Release.json b/scripts/slave/recipes/chromium.expected/full_chromium_gpu_fyi_Mac_GPU_ASAN_Release.json
index 6576000160b489863d97d38cd9cf8507a507206c..8a1a91a97038606ff0e828f7b6df1aa697e9374f 100644
--- a/scripts/slave/recipes/chromium.expected/full_chromium_gpu_fyi_Mac_GPU_ASAN_Release.json
+++ b/scripts/slave/recipes/chromium.expected/full_chromium_gpu_fyi_Mac_GPU_ASAN_Release.json
@@ -27,7 +27,7 @@
       "-u",
       "RECIPE_MODULE[depot_tools::bot_update]/resources/bot_update.py",
       "--spec",
-      "cache_dir = '[GIT_CACHE]'\nsolutions = [{'deps_file': '.DEPS.git', 'managed': True, 'name': 'src', 'url': 'https://chromium.googlesource.com/chromium/src.git'}]",
+      "cache_dir = '[GIT_CACHE]'\nsolutions = [{'deps_file': '.DEPS.git', 'managed': True, 'name': 'src', 'url': 'https://chromium.googlesource.com/chromium/src.git'}, {'custom_deps': {'src/chrome/test/data/firefox2_profile/searchplugins': None, 'src/chrome/test/data/firefox2_searchplugins': None, 'src/chrome/test/data/firefox3_profile/searchplugins': None, 'src/chrome/test/data/firefox3_searchplugins': None, 'src/chrome/test/data/osdd': None, 'src/chrome/test/data/perf/frame_rate/private': None, 'src/chrome/test/data/plugin': None, 'src/chrome/test/data/ssl/certs': None, 'src/data/autodiscovery': None, 'src/data/esctf': None, 'src/data/mach_ports': None, 'src/data/memory_test': None, 'src/data/mozilla_js_tests': None, 'src/data/page_cycler': None, 'src/data/selenium_core': None, 'src/data/tab_switching': None, 'src/tools/grit/grit/test/data': None, 'src/webkit/data/bmp_decoder': None, 'src/webkit/data/ico_decoder': None, 'src/webkit/data/test_shell/plugins': None, 'src/webkit/data/xbm_decoder': None}, 'deps_file': '.DEPS.git', 'managed': True, 'name': 'src-internal', 'url': 'https://chrome-internal.googlesource.com/chrome/src-internal.git'}]",
       "--patch_root",
       "src",
       "--revision_mapping_file",
@@ -38,6 +38,8 @@
       "/path/to/tmp/json",
       "--revision",
       "src@HEAD",
+      "--revision",
+      "src/third_party/angle@HEAD",
       "--output_manifest"
     ],
     "cwd": "[BUILDER_CACHE]/Mac_GPU_ASAN_Release",
@@ -50,7 +52,8 @@
       "@@@STEP_LOG_LINE@json.output@{@@@",
       "@@@STEP_LOG_LINE@json.output@  \"did_run\": true, @@@",
       "@@@STEP_LOG_LINE@json.output@  \"fixed_revisions\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@    \"src\": \"HEAD\"@@@",
+      "@@@STEP_LOG_LINE@json.output@    \"src\": \"HEAD\", @@@",
+      "@@@STEP_LOG_LINE@json.output@    \"src/third_party/angle\": \"HEAD\"@@@",
       "@@@STEP_LOG_LINE@json.output@  }, @@@",
       "@@@STEP_LOG_LINE@json.output@  \"manifest\": {@@@",
       "@@@STEP_LOG_LINE@json.output@    \"src\": {@@@",
@@ -201,6 +204,7 @@
     "cwd": "[BUILDER_CACHE]/Mac_GPU_ASAN_Release/src",
     "env": {
       "GOMA_SERVICE_ACCOUNT_JSON_FILE": "/creds/service_accounts/service-account-goma-client.json",
+      "GYP_CHROMIUM_NO_ACTION": "1",
       "GYP_DEFINES": "clang=1 component=static_library gomadir='[CACHE]/cipd/goma' target_arch=x64 test_isolation_mode=prepare use_goma=1",
       "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]"
     },
@@ -277,6 +281,34 @@
     "name": "clean isolated files"
   },
   {
+    "cmd": [
+      "python",
+      "-u",
+      "[BUILDER_CACHE]/Mac_GPU_ASAN_Release/src/tools/mb/mb.py",
+      "gen",
+      "-m",
+      "chromium.gpu.fyi",
+      "-b",
+      "Mac GPU ASAN Release",
+      "--config-file",
+      "[BUILDER_CACHE]/Mac_GPU_ASAN_Release/src/tools/mb/mb_config.pyl",
+      "--goma-dir",
+      "[CACHE]/cipd/goma",
+      "--swarming-targets-file",
+      "browser_tests\n",
+      "//out/Release"
+    ],
+    "cwd": "[BUILDER_CACHE]/Mac_GPU_ASAN_Release/src",
+    "env": {
+      "GOMA_SERVICE_ACCOUNT_JSON_FILE": "/creds/service_accounts/service-account-goma-client.json"
+    },
+    "name": "generate_build_files",
+    "~followup_annotations": [
+      "@@@STEP_LOG_LINE@swarming-targets-file.txt@browser_tests@@@",
+      "@@@STEP_LOG_END@swarming-targets-file.txt@@@"
+    ]
+  },
+  {
     "allow_subannotations": true,
     "cmd": [
       "python",