[infra] Document purpose and contact for `tryserver.blink` builders

Bug: None
Change-Id: I8ebc87b27553f0b962b18f9f69b9694bc2e793ec
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6460258
Commit-Queue: Ben Pastene <bpastene@chromium.org>
Reviewed-by: Weizhong Xia <weizhong@google.com>
Reviewed-by: Ben Pastene <bpastene@chromium.org>
Auto-Submit: Jonathan Lee <jonathanjlee@google.com>
Cr-Commit-Position: refs/heads/main@{#1447487}
diff --git a/infra/config/generated/builder-owners/chrome-blink-engprod@google.com.txt b/infra/config/generated/builder-owners/chrome-blink-engprod@google.com.txt
index cdbe6b0..a48a9270 100644
--- a/infra/config/generated/builder-owners/chrome-blink-engprod@google.com.txt
+++ b/infra/config/generated/builder-owners/chrome-blink-engprod@google.com.txt
@@ -7,10 +7,20 @@
 ci/win10-wpt-chromium-rel
 try/android-chrome-13-x64-wpt-android-specific
 try/android-webview-13-x64-wpt-android-specific
+try/linux-blink-rel
 try/linux-wpt-chromium-rel
+try/mac11.0-blink-rel
+try/mac11.0.arm64-blink-rel
+try/mac12.0-blink-rel
+try/mac12.0.arm64-blink-rel
+try/mac13-blink-rel
 try/mac13-wpt-chromium-rel
+try/mac13.arm64-blink-rel
 try/mac14-blink-rel
 try/mac14.arm64-blink-rel
 try/mac15-blink-rel
 try/mac15.arm64-blink-rel
-try/win10-wpt-chromium-rel
\ No newline at end of file
+try/win10-wpt-chromium-rel
+try/win10.20h2-blink-rel
+try/win11-arm64-blink-rel
+try/win11-blink-rel
\ No newline at end of file
diff --git a/infra/config/generated/builder-owners/~unowned.txt b/infra/config/generated/builder-owners/~unowned.txt
index 0ae3f3d..b2aa0cf 100644
--- a/infra/config/generated/builder-owners/~unowned.txt
+++ b/infra/config/generated/builder-owners/~unowned.txt
@@ -230,7 +230,6 @@
 try/linux-asan-v8-arm-rel
 try/linux-bfcache-rel
 try/linux-blink-heap-verification-try
-try/linux-blink-rel
 try/linux-blink-web-tests-force-accessibility-rel
 try/linux-centipede-asan-rel
 try/linux-cfm-rel
@@ -313,16 +312,10 @@
 try/mac-swangle-chromium-try-x64
 try/mac-ubsan-fyi-rel
 try/mac11-arm64-rel
-try/mac11.0-blink-rel
-try/mac11.0.arm64-blink-rel
 try/mac12-arm64-rel
 try/mac12-tests
-try/mac12.0-blink-rel
-try/mac12.0.arm64-blink-rel
 try/mac13-arm64-rel
-try/mac13-blink-rel
 try/mac13-tests
-try/mac13.arm64-blink-rel
 try/mac_chromium_11.0_rel_ng
 try/mac_chromium_asan_rel_ng
 try/mac_chromium_compile_dbg_ng
@@ -363,9 +356,6 @@
 try/win10-clang-tidy-rel
 try/win10-code-coverage
 try/win10-dbg
-try/win10.20h2-blink-rel
-try/win11-arm64-blink-rel
-try/win11-blink-rel
 try/win32-official
 try/win_chromium_compile_dbg_ng
 try/win_chromium_compile_rel_ng
diff --git a/infra/config/generated/luci/cr-buildbucket.cfg b/infra/config/generated/luci/cr-buildbucket.cfg
index 51be5d0..9a50555 100644
--- a/infra/config/generated/luci/cr-buildbucket.cfg
+++ b/infra/config/generated/luci/cr-buildbucket.cfg
@@ -108959,6 +108959,8 @@
           use_invocation_timestamp: true
         }
       }
+      description_html: "Standalone try builder that <a href=\"https://chromium.googlesource.com/chromium/src/+/HEAD/docs/testing/web_test_expectations.md#rebaselining-using-try-jobs\">generates new expectations</a> for web platform changes.<br/>Builder owner: <a href=mailto:chrome-blink-engprod@google.com>chrome-blink-engprod@google.com</a>"
+      contact_team_email: "chrome-blink-engprod@google.com"
       custom_metric_definitions {
         name: "/chrome/infra/browser/builds/cached_count"
         predicates: "has(build.output.properties.is_cached)"
@@ -121865,7 +121867,7 @@
           use_invocation_timestamp: true
         }
       }
-      description_html: "This builder mirrors the following CI builders:<br/><ul><li><a href=\"https://ci.chromium.org/p/chromium/builders/ci/mac-arm64-rel\">mac-arm64-rel</a></li><li><a href=\"https://ci.chromium.org/p/chromium/builders/ci/mac-skia-alt-arm64-rel-tests\">mac-skia-alt-arm64-rel-tests</a></li></ul><br/>Builder owner: <a href=mailto:chrome-skia-graphite@google.com>chrome-skia-graphite@google.com</a>"
+      description_html: "Standalone try builder that <a href=\"https://chromium.googlesource.com/chromium/src/+/HEAD/docs/testing/web_test_expectations.md#rebaselining-using-try-jobs\">generates new expectations</a> for web platform changes.<br/>This builder mirrors the following CI builders:<br/><ul><li><a href=\"https://ci.chromium.org/p/chromium/builders/ci/mac-arm64-rel\">mac-arm64-rel</a></li><li><a href=\"https://ci.chromium.org/p/chromium/builders/ci/mac-skia-alt-arm64-rel-tests\">mac-skia-alt-arm64-rel-tests</a></li></ul><br/>Builder owner: <a href=mailto:chrome-skia-graphite@google.com>chrome-skia-graphite@google.com</a>"
       contact_team_email: "chrome-skia-graphite@google.com"
       custom_metric_definitions {
         name: "/chrome/infra/browser/builds/cached_count"
@@ -122633,6 +122635,8 @@
           use_invocation_timestamp: true
         }
       }
+      description_html: "Standalone try builder that <a href=\"https://chromium.googlesource.com/chromium/src/+/HEAD/docs/testing/web_test_expectations.md#rebaselining-using-try-jobs\">generates new expectations</a> for web platform changes.<br/>Builder owner: <a href=mailto:chrome-blink-engprod@google.com>chrome-blink-engprod@google.com</a>"
+      contact_team_email: "chrome-blink-engprod@google.com"
       custom_metric_definitions {
         name: "/chrome/infra/browser/builds/cached_count"
         predicates: "has(build.output.properties.is_cached)"
@@ -122742,6 +122746,8 @@
           use_invocation_timestamp: true
         }
       }
+      description_html: "Standalone try builder that <a href=\"https://chromium.googlesource.com/chromium/src/+/HEAD/docs/testing/web_test_expectations.md#rebaselining-using-try-jobs\">generates new expectations</a> for web platform changes.<br/>Builder owner: <a href=mailto:chrome-blink-engprod@google.com>chrome-blink-engprod@google.com</a>"
+      contact_team_email: "chrome-blink-engprod@google.com"
       custom_metric_definitions {
         name: "/chrome/infra/browser/builds/cached_count"
         predicates: "has(build.output.properties.is_cached)"
@@ -123071,6 +123077,8 @@
           use_invocation_timestamp: true
         }
       }
+      description_html: "Standalone try builder that <a href=\"https://chromium.googlesource.com/chromium/src/+/HEAD/docs/testing/web_test_expectations.md#rebaselining-using-try-jobs\">generates new expectations</a> for web platform changes.<br/>Builder owner: <a href=mailto:chrome-blink-engprod@google.com>chrome-blink-engprod@google.com</a>"
+      contact_team_email: "chrome-blink-engprod@google.com"
       custom_metric_definitions {
         name: "/chrome/infra/browser/builds/cached_count"
         predicates: "has(build.output.properties.is_cached)"
@@ -123180,6 +123188,8 @@
           use_invocation_timestamp: true
         }
       }
+      description_html: "Standalone try builder that <a href=\"https://chromium.googlesource.com/chromium/src/+/HEAD/docs/testing/web_test_expectations.md#rebaselining-using-try-jobs\">generates new expectations</a> for web platform changes.<br/>Builder owner: <a href=mailto:chrome-blink-engprod@google.com>chrome-blink-engprod@google.com</a>"
+      contact_team_email: "chrome-blink-engprod@google.com"
       custom_metric_definitions {
         name: "/chrome/infra/browser/builds/cached_count"
         predicates: "has(build.output.properties.is_cached)"
@@ -123399,6 +123409,8 @@
           use_invocation_timestamp: true
         }
       }
+      description_html: "Standalone try builder that <a href=\"https://chromium.googlesource.com/chromium/src/+/HEAD/docs/testing/web_test_expectations.md#rebaselining-using-try-jobs\">generates new expectations</a> for web platform changes.<br/>Builder owner: <a href=mailto:chrome-blink-engprod@google.com>chrome-blink-engprod@google.com</a>"
+      contact_team_email: "chrome-blink-engprod@google.com"
       custom_metric_definitions {
         name: "/chrome/infra/browser/builds/cached_count"
         predicates: "has(build.output.properties.is_cached)"
@@ -123728,6 +123740,8 @@
           use_invocation_timestamp: true
         }
       }
+      description_html: "Standalone try builder that <a href=\"https://chromium.googlesource.com/chromium/src/+/HEAD/docs/testing/web_test_expectations.md#rebaselining-using-try-jobs\">generates new expectations</a> for web platform changes.<br/>Builder owner: <a href=mailto:chrome-blink-engprod@google.com>chrome-blink-engprod@google.com</a>"
+      contact_team_email: "chrome-blink-engprod@google.com"
       custom_metric_definitions {
         name: "/chrome/infra/browser/builds/cached_count"
         predicates: "has(build.output.properties.is_cached)"
@@ -124062,7 +124076,7 @@
           use_invocation_timestamp: true
         }
       }
-      description_html: "    Runs web tests against content-shell on Mac 14 (Intel).    <br/>Builder owner: <a href=mailto:chrome-blink-engprod@google.com>chrome-blink-engprod@google.com</a>"
+      description_html: "Standalone try builder that <a href=\"https://chromium.googlesource.com/chromium/src/+/HEAD/docs/testing/web_test_expectations.md#rebaselining-using-try-jobs\">generates new expectations</a> for web platform changes.<br/>Builder owner: <a href=mailto:chrome-blink-engprod@google.com>chrome-blink-engprod@google.com</a>"
       contact_team_email: "chrome-blink-engprod@google.com"
       custom_metric_definitions {
         name: "/chrome/infra/browser/builds/cached_count"
@@ -124284,7 +124298,7 @@
           use_invocation_timestamp: true
         }
       }
-      description_html: "    Runs web tests against content-shell on Mac 14 (ARM).    <br/>Builder owner: <a href=mailto:chrome-blink-engprod@google.com>chrome-blink-engprod@google.com</a>"
+      description_html: "Standalone try builder that <a href=\"https://chromium.googlesource.com/chromium/src/+/HEAD/docs/testing/web_test_expectations.md#rebaselining-using-try-jobs\">generates new expectations</a> for web platform changes.<br/>Builder owner: <a href=mailto:chrome-blink-engprod@google.com>chrome-blink-engprod@google.com</a>"
       contact_team_email: "chrome-blink-engprod@google.com"
       custom_metric_definitions {
         name: "/chrome/infra/browser/builds/cached_count"
@@ -124395,7 +124409,7 @@
           use_invocation_timestamp: true
         }
       }
-      description_html: "    Runs web tests against content-shell on Mac 15 (Intel) as a\n    <a href=\"https://chromium.googlesource.com/chromium/src/+/HEAD/docs/testing/web_test_expectations.md#rebaselining-using-try-jobs\">standalone trybot to generate new web test expectations</a>.    <br/>Builder owner: <a href=mailto:chrome-blink-engprod@google.com>chrome-blink-engprod@google.com</a>"
+      description_html: "Standalone try builder that <a href=\"https://chromium.googlesource.com/chromium/src/+/HEAD/docs/testing/web_test_expectations.md#rebaselining-using-try-jobs\">generates new expectations</a> for web platform changes.<br/>Builder owner: <a href=mailto:chrome-blink-engprod@google.com>chrome-blink-engprod@google.com</a>"
       contact_team_email: "chrome-blink-engprod@google.com"
       custom_metric_definitions {
         name: "/chrome/infra/browser/builds/cached_count"
@@ -124506,7 +124520,7 @@
           use_invocation_timestamp: true
         }
       }
-      description_html: "    Runs web tests against content-shell on Mac 15 (Intel) as a\n    <a href=\"https://chromium.googlesource.com/chromium/src/+/HEAD/docs/testing/web_test_expectations.md#rebaselining-using-try-jobs\">standalone trybot to generate new web test expectations</a>.    <br/>Builder owner: <a href=mailto:chrome-blink-engprod@google.com>chrome-blink-engprod@google.com</a>"
+      description_html: "Standalone try builder that <a href=\"https://chromium.googlesource.com/chromium/src/+/HEAD/docs/testing/web_test_expectations.md#rebaselining-using-try-jobs\">generates new expectations</a> for web platform changes.<br/>Builder owner: <a href=mailto:chrome-blink-engprod@google.com>chrome-blink-engprod@google.com</a>"
       contact_team_email: "chrome-blink-engprod@google.com"
       custom_metric_definitions {
         name: "/chrome/infra/browser/builds/cached_count"
@@ -131203,6 +131217,8 @@
           use_invocation_timestamp: true
         }
       }
+      description_html: "Standalone try builder that <a href=\"https://chromium.googlesource.com/chromium/src/+/HEAD/docs/testing/web_test_expectations.md#rebaselining-using-try-jobs\">generates new expectations</a> for web platform changes.<br/>Builder owner: <a href=mailto:chrome-blink-engprod@google.com>chrome-blink-engprod@google.com</a>"
+      contact_team_email: "chrome-blink-engprod@google.com"
       custom_metric_definitions {
         name: "/chrome/infra/browser/builds/cached_count"
         predicates: "has(build.output.properties.is_cached)"
@@ -131313,6 +131329,8 @@
           use_invocation_timestamp: true
         }
       }
+      description_html: "Standalone try builder that <a href=\"https://chromium.googlesource.com/chromium/src/+/HEAD/docs/testing/web_test_expectations.md#rebaselining-using-try-jobs\">generates new expectations</a> for web platform changes.<br/>Builder owner: <a href=mailto:chrome-blink-engprod@google.com>chrome-blink-engprod@google.com</a>"
+      contact_team_email: "chrome-blink-engprod@google.com"
       custom_metric_definitions {
         name: "/chrome/infra/browser/builds/cached_count"
         predicates: "has(build.output.properties.is_cached)"
@@ -131532,6 +131550,8 @@
           use_invocation_timestamp: true
         }
       }
+      description_html: "Standalone try builder that <a href=\"https://chromium.googlesource.com/chromium/src/+/HEAD/docs/testing/web_test_expectations.md#rebaselining-using-try-jobs\">generates new expectations</a> for web platform changes.<br/>Builder owner: <a href=mailto:chrome-blink-engprod@google.com>chrome-blink-engprod@google.com</a>"
+      contact_team_email: "chrome-blink-engprod@google.com"
       custom_metric_definitions {
         name: "/chrome/infra/browser/builds/cached_count"
         predicates: "has(build.output.properties.is_cached)"
diff --git a/infra/config/lib/builder_exemptions.star b/infra/config/lib/builder_exemptions.star
index 4758807..f49098ac 100644
--- a/infra/config/lib/builder_exemptions.star
+++ b/infra/config/lib/builder_exemptions.star
@@ -483,7 +483,6 @@
         "linux-asan-v8-arm-rel",
         "linux-bfcache-rel",
         "linux-blink-heap-verification-try",
-        "linux-blink-rel",
         "linux-blink-web-tests-force-accessibility-rel",
         "linux-centipede-asan-rel",
         "linux-cfm-rel",
@@ -572,18 +571,11 @@
         "mac-swangle-chromium-try-x64",
         "mac-ubsan-fyi-rel",
         "mac11-arm64-rel",
-        "mac11.0-blink-rel",
-        "mac11.0.arm64-blink-rel",
         "mac12-arm64-rel",
         "mac12-tests",
-        "mac12.0-blink-rel",
-        "mac12.0.arm64-blink-rel",
         "mac13-arm64-rel",
         "mac13-arm64-rel-compilator",
-        "mac13-blink-rel",
         "mac13-tests",
-        "mac13.arm64-blink-rel",
-        "mac13.arm64-skia-alt-blink-rel",
         "mac_chromium_11.0_rel_ng",
         "mac_chromium_asan_rel_ng",
         "mac_chromium_compile_dbg_ng",
@@ -624,9 +616,6 @@
         "win10-clang-tidy-rel",
         "win10-code-coverage",
         "win10-dbg",
-        "win10.20h2-blink-rel",
-        "win11-arm64-blink-rel",
-        "win11-blink-rel",
         "win32-clobber-rel",
         "win32-official",
         "win_chromium_compile_dbg_ng",
@@ -898,7 +887,6 @@
         "linux-asan-v8-arm-rel",
         "linux-bfcache-rel",
         "linux-blink-heap-verification-try",
-        "linux-blink-rel",
         "linux-blink-web-tests-force-accessibility-rel",
         "linux-centipede-asan-rel",
         "linux-cfm-rel",
@@ -983,18 +971,11 @@
         "mac-swangle-chromium-try-x64",
         "mac-ubsan-fyi-rel",
         "mac11-arm64-rel",
-        "mac11.0-blink-rel",
-        "mac11.0.arm64-blink-rel",
         "mac12-arm64-rel",
         "mac12-tests",
-        "mac12.0-blink-rel",
-        "mac12.0.arm64-blink-rel",
         "mac13-arm64-rel",
         "mac13-arm64-rel-compilator",
-        "mac13-blink-rel",
         "mac13-tests",
-        "mac13.arm64-blink-rel",
-        "mac13.arm64-skia-alt-blink-rel",
         "mac_chromium_10.15_rel_ng",
         "mac_chromium_11.0_rel_ng",
         "mac_chromium_asan_rel_ng",
@@ -1037,9 +1018,6 @@
         "win10-clang-tidy-rel",
         "win10-code-coverage",
         "win10-dbg",
-        "win10.20h2-blink-rel",
-        "win11-arm64-blink-rel",
-        "win11-blink-rel",
         "win32-official",
         "win_chromium_compile_dbg_ng",
         "win_chromium_compile_rel_ng",
diff --git a/infra/config/subprojects/chromium/try/tryserver.blink.star b/infra/config/subprojects/chromium/try/tryserver.blink.star
index ff2d814..8beef9d 100644
--- a/infra/config/subprojects/chromium/try/tryserver.blink.star
+++ b/infra/config/subprojects/chromium/try/tryserver.blink.star
@@ -17,6 +17,7 @@
     builder_group = "tryserver.blink",
     pool = try_.DEFAULT_POOL,
     cores = 8,
+    contact_team_email = "chrome-blink-engprod@google.com",
     execution_timeout = try_.DEFAULT_EXECUTION_TIMEOUT,
     reclient_enabled = False,
     service_account = try_.DEFAULT_SERVICE_ACCOUNT,
@@ -36,18 +37,25 @@
     branch_selector = branches.selector.DESKTOP_BRANCHES,
 )
 
-def blink_mac_builder(*, name, **kwargs):
+def _mac_rebaseline_builder(*, name, **kwargs):
     kwargs.setdefault("branch_selector", branches.selector.MAC_BRANCHES)
     kwargs.setdefault("builderless", True)
     kwargs.setdefault("cores", None)
     kwargs.setdefault("os", os.MAC_DEFAULT)
     kwargs.setdefault("ssd", True)
-    return try_.builder(
-        name = name,
-        **kwargs
-    )
+    return _rebaseline_builder(name = name, **kwargs)
 
-try_.builder(
+def _rebaseline_builder(*, name, **kwargs):
+    description_html = "Standalone try builder that {} for web platform changes.".format(
+        linkify(
+            "https://chromium.googlesource.com/chromium/src/+/HEAD/docs/testing/web_test_expectations.md#rebaselining-using-try-jobs",
+            "generates new expectations",
+        ),
+    )
+    kwargs.setdefault("description_html", description_html)
+    return try_.builder(name = name, **kwargs)
+
+_rebaseline_builder(
     name = "linux-blink-rel",
     branch_selector = branches.selector.LINUX_BRANCHES,
     builder_spec = builder_config.builder_spec(
@@ -115,7 +123,6 @@
     ),
     gn_args = "ci/linux-wpt-chromium-rel",
     os = os.LINUX_DEFAULT,
-    contact_team_email = "chrome-blink-engprod@google.com",
     main_list_view = "try",
 )
 
@@ -128,11 +135,10 @@
     gn_args = "ci/win10-wpt-chromium-rel",
     builderless = True,
     os = os.WINDOWS_10,
-    contact_team_email = "chrome-blink-engprod@google.com",
     main_list_view = "try",
 )
 
-try_.builder(
+_rebaseline_builder(
     name = "win10.20h2-blink-rel",
     branch_selector = branches.selector.WINDOWS_BRANCHES,
     builder_spec = builder_config.builder_spec(
@@ -193,7 +199,7 @@
     os = os.WINDOWS_ANY,
 )
 
-try_.builder(
+_rebaseline_builder(
     name = "win11-arm64-blink-rel",
     branch_selector = branches.selector.WINDOWS_BRANCHES,
     builder_spec = builder_config.builder_spec(
@@ -256,7 +262,7 @@
     siso_remote_linking = True,
 )
 
-try_.builder(
+_rebaseline_builder(
     name = "win11-blink-rel",
     branch_selector = branches.selector.WINDOWS_BRANCHES,
     builder_spec = builder_config.builder_spec(
@@ -315,7 +321,7 @@
     os = os.WINDOWS_ANY,
 )
 
-blink_mac_builder(
+_mac_rebaseline_builder(
     name = "mac11.0-blink-rel",
     builder_spec = builder_config.builder_spec(
         gclient_config = builder_config.gclient_config(
@@ -367,7 +373,7 @@
     builderless = False,
 )
 
-blink_mac_builder(
+_mac_rebaseline_builder(
     name = "mac11.0.arm64-blink-rel",
     builder_spec = builder_config.builder_spec(
         gclient_config = builder_config.gclient_config(
@@ -421,7 +427,7 @@
     cpu = cpu.ARM64,
 )
 
-blink_mac_builder(
+_mac_rebaseline_builder(
     name = "mac12.0-blink-rel",
     builder_spec = builder_config.builder_spec(
         gclient_config = builder_config.gclient_config(
@@ -473,7 +479,7 @@
     cpu = cpu.ARM64,
 )
 
-blink_mac_builder(
+_mac_rebaseline_builder(
     name = "mac12.0.arm64-blink-rel",
     builder_spec = builder_config.builder_spec(
         gclient_config = builder_config.gclient_config(
@@ -526,7 +532,7 @@
     cpu = cpu.ARM64,
 )
 
-blink_mac_builder(
+_mac_rebaseline_builder(
     name = "mac13-blink-rel",
     builder_spec = builder_config.builder_spec(
         gclient_config = builder_config.gclient_config(
@@ -578,11 +584,10 @@
     cores = None,
     os = os.MAC_ANY,
     cpu = cpu.ARM64,
-    contact_team_email = "chrome-blink-engprod@google.com",
     main_list_view = "try",
 )
 
-blink_mac_builder(
+_mac_rebaseline_builder(
     name = "mac13.arm64-blink-rel",
     builder_spec = builder_config.builder_spec(
         gclient_config = builder_config.gclient_config(
@@ -623,7 +628,7 @@
     cpu = cpu.ARM64,
 )
 
-blink_mac_builder(
+_mac_rebaseline_builder(
     name = "mac-skia-alt-arm64-blink-rel",
     branch_selector = None,
     mirrors = [
@@ -652,11 +657,8 @@
     main_list_view = "try",
 )
 
-blink_mac_builder(
+_mac_rebaseline_builder(
     name = "mac14-blink-rel",
-    description_html = """\
-    Runs web tests against content-shell on Mac 14 (Intel).\
-    """,
     builder_spec = builder_config.builder_spec(
         gclient_config = builder_config.gclient_config(
             config = "chromium",
@@ -693,14 +695,10 @@
         ],
     ),
     cpu = cpu.ARM64,
-    contact_team_email = "chrome-blink-engprod@google.com",
 )
 
-blink_mac_builder(
+_mac_rebaseline_builder(
     name = "mac14.arm64-blink-rel",
-    description_html = """\
-    Runs web tests against content-shell on Mac 14 (ARM).\
-    """,
     builder_spec = builder_config.builder_spec(
         gclient_config = builder_config.gclient_config(
             config = "chromium",
@@ -737,15 +735,10 @@
         ],
     ),
     cpu = cpu.ARM64,
-    contact_team_email = "chrome-blink-engprod@google.com",
 )
 
-blink_mac_builder(
+_mac_rebaseline_builder(
     name = "mac15-blink-rel",
-    description_html = """\
-    Runs web tests against content-shell on Mac 15 (Intel) as a
-    <a href="https://chromium.googlesource.com/chromium/src/+/HEAD/docs/testing/web_test_expectations.md#rebaselining-using-try-jobs">standalone trybot to generate new web test expectations</a>.\
-    """,
     builder_spec = builder_config.builder_spec(
         gclient_config = builder_config.gclient_config(
             config = "chromium",
@@ -782,15 +775,10 @@
         ],
     ),
     cpu = cpu.ARM64,
-    contact_team_email = "chrome-blink-engprod@google.com",
 )
 
-blink_mac_builder(
+_mac_rebaseline_builder(
     name = "mac15.arm64-blink-rel",
-    description_html = """\
-    Runs web tests against content-shell on Mac 15 (Intel) as a
-    <a href="https://chromium.googlesource.com/chromium/src/+/HEAD/docs/testing/web_test_expectations.md#rebaselining-using-try-jobs">standalone trybot to generate new web test expectations</a>.\
-    """,
     builder_spec = builder_config.builder_spec(
         gclient_config = builder_config.gclient_config(
             config = "chromium",
@@ -827,5 +815,4 @@
         ],
     ),
     cpu = cpu.ARM64,
-    contact_team_email = "chrome-blink-engprod@google.com",
 )