Migrate 3 CQ builders on the xenial builderless pool to builderfull.

crrev.com/i/3385048 allocates the machines for these builders, so this
can't land until that is deployed.

Bug: 1140727
Change-Id: Ib09a59fdfd0aa4bba54a091606c08f76b59c48f2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2521352Reviewed-by: Garrett Beaty <gbeaty@chromium.org>
Commit-Queue: Ben Pastene <bpastene@chromium.org>
Cr-Commit-Position: refs/heads/master@{#824579}

infra/config/generated/cr-buildbucket.cfg

@@ -20477,12 +20477,11 @@ buckets {
       name: "android_compile_dbg"
       swarming_host: "chromium-swarm.appspot.com"
       swarming_tags: "vpython:native-python-wrapper"
-      dimensions: "builderless:1"
+      dimensions: "builder:android_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"
@@ -20612,12 +20611,11 @@ buckets {
       name: "android_cronet"
       swarming_host: "chromium-swarm.appspot.com"
       swarming_tags: "vpython:native-python-wrapper"
-      dimensions: "builderless:1"
+      dimensions: "builder:android_cronet"
       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"
@@ -20925,12 +20923,11 @@ buckets {
       name: "cast_shell_linux"
       swarming_host: "chromium-swarm.appspot.com"
       swarming_tags: "vpython:native-python-wrapper"
-      dimensions: "builderless:1"
+      dimensions: "builder:cast_shell_linux"
       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

@@ -468,6 +468,7 @@ try_.chromium_android_builder(
 try_.chromium_android_builder(
     name = "android_compile_dbg",
     branch_selector = branches.STANDARD_MILESTONE,
+    builderless = not settings.is_master,
     goma_jobs = goma.jobs.J150,
     main_list_view = "try",
     tryjob = try_.job(),
@@ -512,6 +513,7 @@ try_.chromium_android_builder(
 try_.chromium_android_builder(
     name = "android_cronet",
     branch_selector = branches.STANDARD_MILESTONE,
+    builderless = not settings.is_master,
     main_list_view = "try",
     tryjob = try_.job(),
 )
@@ -802,6 +804,7 @@ try_.chromium_linux_builder(
 try_.chromium_linux_builder(
     name = "cast_shell_linux",
     branch_selector = branches.STANDARD_MILESTONE,
+    builderless = not settings.is_master,
     main_list_view = "try",
     tryjob = try_.job(),
 )