Extend chromium_tests trigger to work across masters.

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

 [
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_PACKAGE_REPO[build]\\scripts\\slave\\kill_processes.py"
     ],
     "name": "taskkill"
   },
   {
@@ skipping 261 matching lines @@
       "--build-properties",
       "{\"blamelist\": [\"cool_dev1337@chromium.org\", \"hax@chromium.org\"], \"build_data_dir\": \"[ROOT]\\\\build_data_dir\", \"buildername\": \"Win Builder\", \"buildnumber\": 571, \"mastername\": \"chromium.perf\", \"parent_buildername\": null, \"recipe\": \"chromium\", \"slavename\": \"TestSlavename\", \"workdir\": \"/path/to/workdir/TestSlavename\"}"
     ],
     "name": "package build"
   },
   {
     "cmd": [],
     "name": "trigger",
     "trigger_specs": [
       {
+        "bucket": "master.chromium.perf",
         "builder_name": "Win 7 Low-End Perf (1)",
         "properties": {
           "parent_got_angle_revision": "fac9503c46405f77757b9a728eb85b8d7bc6080c",
           "parent_got_angle_revision_cp": "refs/heads/master@{#297276}",
           "parent_got_nacl_revision": "d998e125e8253980d76e269b7982aeeefc1b9b50",
           "parent_got_nacl_revision_cp": "refs/heads/master@{#274981}",
           "parent_got_revision": "f27fede2220bcd326aee3e86ddfd4ebd0fe58cb9",
           "parent_got_revision_cp": "refs/heads/master@{#170242}",
           "parent_got_swarming_client_revision": "a0ee5d99f1d4b38ddaa4c759c837980b63b99566",
           "parent_got_swarming_client_revision_cp": "refs/heads/master@{#276089}",
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           "parent_got_v8_revision_cp": "refs/heads/master@{#43426}",
           "parent_got_webrtc_revision": "0f90628433546e61d9268596da93418c623137f4",
           "parent_got_webrtc_revision_cp": "refs/heads/master@{#120644}"
         }
-      }
-    ],
-    "~followup_annotations": [
-      "@@@STEP_TEXT@Win 7 Low-End Perf (1)@@@"
-    ]
-  },
-  {
-    "cmd": [],
-    "name": "trigger (2)",
-    "trigger_specs": [
+      },
       {
+        "bucket": "master.chromium.perf",
         "builder_name": "Win 7 Low-End Perf (2)",
         "properties": {
           "parent_got_angle_revision": "fac9503c46405f77757b9a728eb85b8d7bc6080c",
           "parent_got_angle_revision_cp": "refs/heads/master@{#297276}",
           "parent_got_nacl_revision": "d998e125e8253980d76e269b7982aeeefc1b9b50",
           "parent_got_nacl_revision_cp": "refs/heads/master@{#274981}",
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           "parent_got_revision_cp": "refs/heads/master@{#170242}",
           "parent_got_swarming_client_revision": "a0ee5d99f1d4b38ddaa4c759c837980b63b99566",
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           "parent_got_v8_revision": "801ada225ddc271c132c3a35f03975671d43e399",
           "parent_got_v8_revision_cp": "refs/heads/master@{#43426}",
           "parent_got_webrtc_revision": "0f90628433546e61d9268596da93418c623137f4",
           "parent_got_webrtc_revision_cp": "refs/heads/master@{#120644}"
         }
-      }
-    ],
-    "~followup_annotations": [
-      "@@@STEP_TEXT@Win 7 Low-End Perf (2)@@@"
-    ]
-  },
-  {
-    "cmd": [],
-    "name": "trigger (3)",
-    "trigger_specs": [
+      },
       {
+        "bucket": "master.chromium.perf",
         "builder_name": "Win 7 Perf (1)",
         "properties": {
           "parent_got_angle_revision": "fac9503c46405f77757b9a728eb85b8d7bc6080c",
           "parent_got_angle_revision_cp": "refs/heads/master@{#297276}",
           "parent_got_nacl_revision": "d998e125e8253980d76e269b7982aeeefc1b9b50",
           "parent_got_nacl_revision_cp": "refs/heads/master@{#274981}",
           "parent_got_revision": "f27fede2220bcd326aee3e86ddfd4ebd0fe58cb9",
           "parent_got_revision_cp": "refs/heads/master@{#170242}",
           "parent_got_swarming_client_revision": "a0ee5d99f1d4b38ddaa4c759c837980b63b99566",
           "parent_got_swarming_client_revision_cp": "refs/heads/master@{#276089}",
           "parent_got_v8_revision": "801ada225ddc271c132c3a35f03975671d43e399",
           "parent_got_v8_revision_cp": "refs/heads/master@{#43426}",
           "parent_got_webrtc_revision": "0f90628433546e61d9268596da93418c623137f4",
           "parent_got_webrtc_revision_cp": "refs/heads/master@{#120644}"
         }
-      }
-    ],
-    "~followup_annotations": [
-      "@@@STEP_TEXT@Win 7 Perf (1)@@@"
-    ]
-  },
-  {
-    "cmd": [],
-    "name": "trigger (4)",
-    "trigger_specs": [
+      },
       {
+        "bucket": "master.chromium.perf",
         "builder_name": "Win 7 Perf (2)",
         "properties": {
           "parent_got_angle_revision": "fac9503c46405f77757b9a728eb85b8d7bc6080c",
           "parent_got_angle_revision_cp": "refs/heads/master@{#297276}",
           "parent_got_nacl_revision": "d998e125e8253980d76e269b7982aeeefc1b9b50",
           "parent_got_nacl_revision_cp": "refs/heads/master@{#274981}",
           "parent_got_revision": "f27fede2220bcd326aee3e86ddfd4ebd0fe58cb9",
           "parent_got_revision_cp": "refs/heads/master@{#170242}",
           "parent_got_swarming_client_revision": "a0ee5d99f1d4b38ddaa4c759c837980b63b99566",
           "parent_got_swarming_client_revision_cp": "refs/heads/master@{#276089}",
           "parent_got_v8_revision": "801ada225ddc271c132c3a35f03975671d43e399",
           "parent_got_v8_revision_cp": "refs/heads/master@{#43426}",
           "parent_got_webrtc_revision": "0f90628433546e61d9268596da93418c623137f4",
           "parent_got_webrtc_revision_cp": "refs/heads/master@{#120644}"
         }
-      }
-    ],
-    "~followup_annotations": [
-      "@@@STEP_TEXT@Win 7 Perf (2)@@@"
-    ]
-  },
-  {
-    "cmd": [],
-    "name": "trigger (5)",
-    "trigger_specs": [
+      },
       {
+        "bucket": "master.chromium.perf",
         "builder_name": "Win 7 Perf (3)",
         "properties": {
           "parent_got_angle_revision": "fac9503c46405f77757b9a728eb85b8d7bc6080c",
           "parent_got_angle_revision_cp": "refs/heads/master@{#297276}",
           "parent_got_nacl_revision": "d998e125e8253980d76e269b7982aeeefc1b9b50",
           "parent_got_nacl_revision_cp": "refs/heads/master@{#274981}",
           "parent_got_revision": "f27fede2220bcd326aee3e86ddfd4ebd0fe58cb9",
           "parent_got_revision_cp": "refs/heads/master@{#170242}",
           "parent_got_swarming_client_revision": "a0ee5d99f1d4b38ddaa4c759c837980b63b99566",
           "parent_got_swarming_client_revision_cp": "refs/heads/master@{#276089}",
           "parent_got_v8_revision": "801ada225ddc271c132c3a35f03975671d43e399",
           "parent_got_v8_revision_cp": "refs/heads/master@{#43426}",
           "parent_got_webrtc_revision": "0f90628433546e61d9268596da93418c623137f4",
           "parent_got_webrtc_revision_cp": "refs/heads/master@{#120644}"
         }
-      }
-    ],
-    "~followup_annotations": [
-      "@@@STEP_TEXT@Win 7 Perf (3)@@@"
-    ]
-  },
-  {
-    "cmd": [],
-    "name": "trigger (6)",
-    "trigger_specs": [
+      },
       {
+        "bucket": "master.chromium.perf",
         "builder_name": "Win 7 Perf (4)",
         "properties": {
           "parent_got_angle_revision": "fac9503c46405f77757b9a728eb85b8d7bc6080c",
           "parent_got_angle_revision_cp": "refs/heads/master@{#297276}",
           "parent_got_nacl_revision": "d998e125e8253980d76e269b7982aeeefc1b9b50",
           "parent_got_nacl_revision_cp": "refs/heads/master@{#274981}",
           "parent_got_revision": "f27fede2220bcd326aee3e86ddfd4ebd0fe58cb9",
           "parent_got_revision_cp": "refs/heads/master@{#170242}",
           "parent_got_swarming_client_revision": "a0ee5d99f1d4b38ddaa4c759c837980b63b99566",
           "parent_got_swarming_client_revision_cp": "refs/heads/master@{#276089}",
           "parent_got_v8_revision": "801ada225ddc271c132c3a35f03975671d43e399",
           "parent_got_v8_revision_cp": "refs/heads/master@{#43426}",
           "parent_got_webrtc_revision": "0f90628433546e61d9268596da93418c623137f4",
           "parent_got_webrtc_revision_cp": "refs/heads/master@{#120644}"
         }
-      }
-    ],
-    "~followup_annotations": [
-      "@@@STEP_TEXT@Win 7 Perf (4)@@@"
-    ]
-  },
-  {
-    "cmd": [],
-    "name": "trigger (7)",
-    "trigger_specs": [
+      },
       {
+        "bucket": "master.chromium.perf",
         "builder_name": "Win 7 Perf (5)",
         "properties": {
           "parent_got_angle_revision": "fac9503c46405f77757b9a728eb85b8d7bc6080c",
           "parent_got_angle_revision_cp": "refs/heads/master@{#297276}",
           "parent_got_nacl_revision": "d998e125e8253980d76e269b7982aeeefc1b9b50",
           "parent_got_nacl_revision_cp": "refs/heads/master@{#274981}",
           "parent_got_revision": "f27fede2220bcd326aee3e86ddfd4ebd0fe58cb9",
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           "parent_got_swarming_client_revision": "a0ee5d99f1d4b38ddaa4c759c837980b63b99566",
           "parent_got_swarming_client_revision_cp": "refs/heads/master@{#276089}",
           "parent_got_v8_revision": "801ada225ddc271c132c3a35f03975671d43e399",
           "parent_got_v8_revision_cp": "refs/heads/master@{#43426}",
           "parent_got_webrtc_revision": "0f90628433546e61d9268596da93418c623137f4",
           "parent_got_webrtc_revision_cp": "refs/heads/master@{#120644}"
         }
       }
     ],
     "~followup_annotations": [
-      "@@@STEP_TEXT@Win 7 Perf (5)@@@"
+      "@@@STEP_TEXT@Win 7 Low-End Perf (1)<br />Win 7 Low-End Perf (2)<br />Win 7 Perf (1)<br />Win 7 Perf (2)<br />Win 7 Perf (3)<br />Win 7 Perf (4)<br />Win 7 Perf (5)@@@"
     ]
   },
   {
     "allow_subannotations": true,
     "cmd": [
       "python",
       "-u",
       "RECIPE_PACKAGE_REPO[build]\\scripts\\slave\\runtest.py",
       "--target",
       "Release",
@@ skipping 24 matching lines @@
       "Release"
     ],
     "name": "process_dumps"
   },
   {
     "name": "$result",
     "recipe_result": null,
     "status_code": 0
   }
 ]