Add src-side builder configs for CrOS arm-generic CI+try bot.

Daisy is kill. Need new arm bot on the CQ.

R=jbudorick

Bug: 966656
Change-Id: If2ba8d231e35cb81a43929b68fc992543d62907c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1628873
Commit-Queue: Ben Pastene <bpastene@chromium.org>
Reviewed-by: John Budorick <jbudorick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#663158}

infra/config/cr-buildbucket.cfg

@@ -1211,6 +1211,12 @@ buckets {
       mixins: "linux"
     }
 
+    builders {
+      name: "chromeos-arm-generic-rel"
+      mixins: "chromeos-ci"
+      mixins: "builderless"
+    }
+
     builders {
       name: "chromeos-vm-code-coverage"
       mixins: "code-coverage"
@@ -3505,6 +3511,7 @@ buckets {
 
     builders { mixins: "chromeos-try" name: "chromeos-amd64-generic-cfi-thin-lto-rel" }
     builders { mixins: "chromeos-try" name: "chromeos-amd64-generic-rel" }
+    builders { mixins: "chromeos-try" name: "chromeos-arm-generic-rel" }
     builders { mixins: "chromeos-try" name: "chromeos-daisy-rel" }
     builders { mixins: "chromeos-try" name: "chromeos-kevin-compile-rel" }
     builders { mixins: "chromeos-try" name: "chromeos-kevin-rel" }

infra/config/luci-milo.cfg

@@ -625,6 +625,11 @@ consoles {
     category: "chromium.chromiumos|simple|release|x64"
     short_name: "rel"
   }
+  builders {
+    name: "buildbucket/luci.chromium.ci/chromeos-arm-generic-rel"
+    category: "chromium.chromiumos|simple|release"
+    short_name: "arm"
+  }
   builders {
     name: "buildbucket/luci.chromium.ci/chromeos-daisy-rel"
     category: "chromium.chromiumos|simple|release"
@@ -1052,6 +1057,11 @@ consoles {
     category: "simple|release|x64"
     short_name: "rel"
   }
+  builders {
+    name: "buildbucket/luci.chromium.ci/chromeos-arm-generic-rel"
+    category: "simple|release"
+    short_name: "arm"
+  }
   builders {
     name: "buildbucket/luci.chromium.ci/chromeos-daisy-rel"
     category: "simple|release"
@@ -3745,6 +3755,9 @@ consoles {
   builders {
     name: "buildbucket/luci.chromium.try/chromeos-amd64-generic-rel"
   }
+  builders {
+    name: "buildbucket/luci.chromium.try/chromeos-arm-generic-rel"
+  }
   builders {
     name: "buildbucket/luci.chromium.try/chromeos-daisy-rel"
   }
@@ -4351,6 +4364,9 @@ consoles {
   builders {
     name: "buildbucket/luci.chromium.try/chromeos-amd64-generic-rel"
   }
+  builders {
+    name: "buildbucket/luci.chromium.try/chromeos-arm-generic-rel"
+  }
   builders {
     name: "buildbucket/luci.chromium.try/chromeos-daisy-rel"
   }

infra/config/luci-scheduler.cfg

@@ -321,6 +321,7 @@ trigger {
   triggers: "chromeos-amd64-generic-rel-goma-canary"
   triggers: "chromeos-amd64-generic-rel-goma-latest"
   triggers: "chromeos-amd64-generic-rel-vm-tests"
+  triggers: "chromeos-arm-generic-rel"
   triggers: "chromeos-daisy-rel"
   triggers: "chromeos-kevin-rel"
   triggers: "chromeos-kevin-rel-hw-tests"
@@ -1121,6 +1122,16 @@ job {
   }
 }
 
+job {
+  id: "chromeos-arm-generic-rel"
+  acl_sets: "default"
+  buildbucket: {
+    server: "cr-buildbucket.appspot.com"
+    bucket: "luci.chromium.ci"
+    builder: "chromeos-arm-generic-rel"
+  }
+}
+
 job {
   id: "chromeos-daisy-rel"
   acl_sets: "default"

testing/buildbot/chromium.chromiumos.json

@@ -526,6 +526,11 @@
       }
     ]
   },
+  "chromeos-arm-generic-rel": {
+    "additional_compile_targets": [
+      "chromiumos_preflight"
+    ]
+  },
   "chromeos-daisy-rel": {
     "additional_compile_targets": [
       "chromiumos_preflight"

testing/buildbot/waterfalls.pyl

@@ -670,6 +670,11 @@
           ],
         },
       },
+      'chromeos-arm-generic-rel': {
+        'additional_compile_targets': [
+          'chromiumos_preflight',
+        ],
+      },
       'chromeos-daisy-rel': {
         'additional_compile_targets': [
           'chromiumos_preflight',

tools/mb/mb_config.pyl

@@ -100,6 +100,7 @@
       'chromeos-amd64-generic-asan-rel': 'cros_chrome_sdk_asan',
       'chromeos-amd64-generic-cfi-thin-lto-rel': 'cros_chrome_sdk_headless_ozone_cfi_thin_lto',
       'chromeos-amd64-generic-rel': 'cros_chrome_sdk_headless_ozone',
+      'chromeos-arm-generic-rel': 'cros_chrome_sdk',
       'chromeos-daisy-rel': 'cros_chrome_sdk',
       'chromeos-kevin-rel': 'cros_chrome_sdk_headless_ozone',
       'linux-chromeos-rel': 'chromeos_with_codecs_release_bot',
@@ -675,6 +676,7 @@
       # and two kevin bots when the PFQ has it enabled.
       'chromeos-amd64-generic-cfi-thin-lto-rel': 'cros_chrome_sdk_headless_ozone_cfi_thin_lto',
       'chromeos-amd64-generic-rel': 'cros_chrome_sdk_headless_ozone',
+      'chromeos-arm-generic-rel': 'cros_chrome_sdk_dchecks_always_on',
       'chromeos-daisy-rel': 'cros_chrome_sdk_dchecks_always_on',
       'chromeos-kevin-compile-rel': 'cros_chrome_sdk_headless_ozone',
       'chromeos-kevin-rel': 'cros_chrome_sdk_headless_ozone',