Switch cast_shell_android and linux-chromeos dbg CQ bots to builderfull.

crrev.com/i/3380959 allocates their machines, so this shouldn't land
until that does.

Bug: 1140727
Change-Id: Ieb61391caafbb70416bda879dbacbfd60a35b5db
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2518409Reviewed-by: Garrett Beaty <gbeaty@chromium.org>
Commit-Queue: Ben Pastene <bpastene@chromium.org>
Cr-Commit-Position: refs/heads/master@{#823783}

infra/config/generated/cr-buildbucket.cfg

@@ -22255,12 +22255,11 @@ buckets {
       name: "cast_shell_android"
       swarming_host: "chromium-swarm.appspot.com"
       swarming_tags: "vpython:native-python-wrapper"
-      dimensions: "builderless:1"
+      dimensions: "builder:cast_shell_android"
       dimensions: "cores:8"
       dimensions: "cpu:x86-64"
       dimensions: "os:Ubuntu-16.04"
       dimensions: "pool:luci.chromium.try"
-      dimensions: "ssd:0"
       exe {
         cipd_package: "infra/recipe_bundles/chromium.googlesource.com/chromium/tools/build"
         cipd_version: "refs/heads/master"
@@ -28300,12 +28299,11 @@ buckets {
       name: "linux-chromeos-compile-dbg"
       swarming_host: "chromium-swarm.appspot.com"
       swarming_tags: "vpython:native-python-wrapper"
-      dimensions: "builderless:1"
+      dimensions: "builder:linux-chromeos-compile-dbg"
       dimensions: "cores:8"
       dimensions: "cpu:x86-64"
       dimensions: "os:Ubuntu-16.04"
       dimensions: "pool:luci.chromium.try"
-      dimensions: "ssd:0"
       exe {
         cipd_package: "infra/recipe_bundles/chromium.googlesource.com/chromium/tools/build"
         cipd_version: "refs/heads/master"

infra/config/subprojects/chromium/try.star

@@ -533,6 +533,7 @@ try_.chromium_android_builder(
 try_.chromium_android_builder(
     name = "cast_shell_android",
     branch_selector = branches.STANDARD_MILESTONE,
+    builderless = not settings.is_master,
     main_list_view = "try",
     tryjob = try_.job(),
 )
@@ -648,6 +649,7 @@ try_.chromium_chromiumos_builder(
 try_.chromium_chromiumos_builder(
     name = "linux-chromeos-compile-dbg",
     branch_selector = branches.STANDARD_MILESTONE,
+    builderless = not settings.is_master,
     main_list_view = "try",
     tryjob = try_.job(),
 )