Extend chromium_tests trigger to work across masters.

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

Index: scripts/slave/recipes/chromium.expected/full_chromium_gpu_fyi_GPU_Mac_Builder.json
diff --git a/scripts/slave/recipes/chromium.expected/full_chromium_gpu_fyi_GPU_Mac_Builder.json b/scripts/slave/recipes/chromium.expected/full_chromium_gpu_fyi_GPU_Mac_Builder.json
index 51a9779078c77ba6f8b54e0abc275119e8dc300c..e0773c209d40eb3f6f1bd3e779df626cec14e2c3 100644
--- a/scripts/slave/recipes/chromium.expected/full_chromium_gpu_fyi_GPU_Mac_Builder.json
+++ b/scripts/slave/recipes/chromium.expected/full_chromium_gpu_fyi_GPU_Mac_Builder.json
@@ -492,16 +492,7 @@
           "parent_got_webrtc_revision": "0f90628433546e61d9268596da93418c623137f4",
           "parent_got_webrtc_revision_cp": "refs/heads/master@{#120644}"
         }
-      }
-    ],
-    "~followup_annotations": [
-      "@@@STEP_TEXT@Mac 10.10 Release (ATI)@@@"
-    ]
-  },
-  {
-    "cmd": [],
-    "name": "trigger (2)",
-    "trigger_specs": [
+      },
       {
         "builder_name": "Mac 10.10 Release (Intel)",
         "properties": {
@@ -520,16 +511,7 @@
           "parent_got_webrtc_revision": "0f90628433546e61d9268596da93418c623137f4",
           "parent_got_webrtc_revision_cp": "refs/heads/master@{#120644}"
         }
-      }
-    ],
-    "~followup_annotations": [
-      "@@@STEP_TEXT@Mac 10.10 Release (Intel)@@@"
-    ]
-  },
-  {
-    "cmd": [],
-    "name": "trigger (3)",
-    "trigger_specs": [
+      },
       {
         "builder_name": "Mac 10.10 Retina Release (AMD)",
         "properties": {
@@ -548,16 +530,7 @@
           "parent_got_webrtc_revision": "0f90628433546e61d9268596da93418c623137f4",
           "parent_got_webrtc_revision_cp": "refs/heads/master@{#120644}"
         }
-      }
-    ],
-    "~followup_annotations": [
-      "@@@STEP_TEXT@Mac 10.10 Retina Release (AMD)@@@"
-    ]
-  },
-  {
-    "cmd": [],
-    "name": "trigger (4)",
-    "trigger_specs": [
+      },
       {
         "builder_name": "Mac Retina Release",
         "properties": {
@@ -576,16 +549,7 @@
           "parent_got_webrtc_revision": "0f90628433546e61d9268596da93418c623137f4",
           "parent_got_webrtc_revision_cp": "refs/heads/master@{#120644}"
         }
-      }
-    ],
-    "~followup_annotations": [
-      "@@@STEP_TEXT@Mac Retina Release@@@"
-    ]
-  },
-  {
-    "cmd": [],
-    "name": "trigger (5)",
-    "trigger_specs": [
+      },
       {
         "builder_name": "Optional Mac 10.10 Release (Intel)",
         "properties": {
@@ -604,16 +568,7 @@
           "parent_got_webrtc_revision": "0f90628433546e61d9268596da93418c623137f4",
           "parent_got_webrtc_revision_cp": "refs/heads/master@{#120644}"
         }
-      }
-    ],
-    "~followup_annotations": [
-      "@@@STEP_TEXT@Optional Mac 10.10 Release (Intel)@@@"
-    ]
-  },
-  {
-    "cmd": [],
-    "name": "trigger (6)",
-    "trigger_specs": [
+      },
       {
         "builder_name": "Optional Mac 10.10 Retina Release (AMD)",
         "properties": {
@@ -632,16 +587,7 @@
           "parent_got_webrtc_revision": "0f90628433546e61d9268596da93418c623137f4",
           "parent_got_webrtc_revision_cp": "refs/heads/master@{#120644}"
         }
-      }
-    ],
-    "~followup_annotations": [
-      "@@@STEP_TEXT@Optional Mac 10.10 Retina Release (AMD)@@@"
-    ]
-  },
-  {
-    "cmd": [],
-    "name": "trigger (7)",
-    "trigger_specs": [
+      },
       {
         "builder_name": "Optional Mac Retina Release",
         "properties": {
@@ -663,7 +609,7 @@
       }
     ],
     "~followup_annotations": [
-      "@@@STEP_TEXT@Optional Mac Retina Release@@@"
+      "@@@STEP_TEXT@Mac 10.10 Release (ATI)<br />Mac 10.10 Release (Intel)<br />Mac 10.10 Retina Release (AMD)<br />Mac Retina Release<br />Optional Mac 10.10 Release (Intel)<br />Optional Mac 10.10 Retina Release (AMD)<br />Optional Mac Retina Release@@@"
     ]
   },
   {