Extend chromium_tests trigger to work across masters.

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

Index: scripts/slave/recipes/chromium.expected/full_chromium_gpu_fyi_GPU_Linux_Builder.json
diff --git a/scripts/slave/recipes/chromium.expected/full_chromium_gpu_fyi_GPU_Linux_Builder.json b/scripts/slave/recipes/chromium.expected/full_chromium_gpu_fyi_GPU_Linux_Builder.json
index 6bad84b4f1135e74d8582cd28147b8f4dc7fcd67..f2091b0abb262fe9413ae3b9514988fe0b88aa8c 100644
--- a/scripts/slave/recipes/chromium.expected/full_chromium_gpu_fyi_GPU_Linux_Builder.json
+++ b/scripts/slave/recipes/chromium.expected/full_chromium_gpu_fyi_GPU_Linux_Builder.json
@@ -450,16 +450,7 @@
           "parent_got_webrtc_revision": "0f90628433546e61d9268596da93418c623137f4",
           "parent_got_webrtc_revision_cp": "refs/heads/master@{#120644}"
         }
-      }
-    ],
-    "~followup_annotations": [
-      "@@@STEP_TEXT@Linux Release (ATI)@@@"
-    ]
-  },
-  {
-    "cmd": [],
-    "name": "trigger (2)",
-    "trigger_specs": [
+      },
       {
         "builder_name": "Linux Release (NVIDIA GeForce 730)",
         "properties": {
@@ -478,16 +469,7 @@
           "parent_got_webrtc_revision": "0f90628433546e61d9268596da93418c623137f4",
           "parent_got_webrtc_revision_cp": "refs/heads/master@{#120644}"
         }
-      }
-    ],
-    "~followup_annotations": [
-      "@@@STEP_TEXT@Linux Release (NVIDIA GeForce 730)@@@"
-    ]
-  },
-  {
-    "cmd": [],
-    "name": "trigger (3)",
-    "trigger_specs": [
+      },
       {
         "builder_name": "Linux Release (NVIDIA)",
         "properties": {
@@ -506,16 +488,7 @@
           "parent_got_webrtc_revision": "0f90628433546e61d9268596da93418c623137f4",
           "parent_got_webrtc_revision_cp": "refs/heads/master@{#120644}"
         }
-      }
-    ],
-    "~followup_annotations": [
-      "@@@STEP_TEXT@Linux Release (NVIDIA)@@@"
-    ]
-  },
-  {
-    "cmd": [],
-    "name": "trigger (4)",
-    "trigger_specs": [
+      },
       {
         "builder_name": "Linux Release (New Intel)",
         "properties": {
@@ -534,16 +507,7 @@
           "parent_got_webrtc_revision": "0f90628433546e61d9268596da93418c623137f4",
           "parent_got_webrtc_revision_cp": "refs/heads/master@{#120644}"
         }
-      }
-    ],
-    "~followup_annotations": [
-      "@@@STEP_TEXT@Linux Release (New Intel)@@@"
-    ]
-  },
-  {
-    "cmd": [],
-    "name": "trigger (5)",
-    "trigger_specs": [
+      },
       {
         "builder_name": "Optional Linux Release (NVIDIA)",
         "properties": {
@@ -565,7 +529,7 @@
       }
     ],
     "~followup_annotations": [
-      "@@@STEP_TEXT@Optional Linux Release (NVIDIA)@@@"
+      "@@@STEP_TEXT@Linux Release (ATI)<br />Linux Release (NVIDIA GeForce 730)<br />Linux Release (NVIDIA)<br />Linux Release (New Intel)<br />Optional Linux Release (NVIDIA)@@@"
     ]
   },
   {