infra: Migrate all fuchsia CQ bots to builderfull.

crrev.com/i/3440720 allocates the machines for these builders.

Bug: 1140727
Change-Id: Idb58c124a30f9535dd4b4a75aa2a40c4b2a54a19
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2568166
Commit-Queue: Ben Pastene <bpastene@chromium.org>
Reviewed-by: Garrett Beaty <gbeaty@chromium.org>
Cr-Commit-Position: refs/heads/master@{#832561}

infra/config/generated/cr-buildbucket.cfg

@@ -28275,12 +28275,11 @@ buckets {
       name: "fuchsia-x64-cast"
       swarming_host: "chromium-swarm.appspot.com"
       swarming_tags: "vpython:native-python-wrapper"
-      dimensions: "builderless:1"
+      dimensions: "builder:fuchsia-x64-cast"
       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"
@@ -28330,12 +28329,11 @@ buckets {
       name: "fuchsia_arm64"
       swarming_host: "chromium-swarm.appspot.com"
       swarming_tags: "vpython:native-python-wrapper"
-      dimensions: "builderless:1"
+      dimensions: "builder:fuchsia_arm64"
       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"
@@ -28385,12 +28383,11 @@ buckets {
       name: "fuchsia_x64"
       swarming_host: "chromium-swarm.appspot.com"
       swarming_tags: "vpython:native-python-wrapper"
-      dimensions: "builderless:1"
+      dimensions: "builder:fuchsia_x64"
       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

@@ -892,6 +892,7 @@ try_.chromium_linux_builder(
 try_.chromium_linux_builder(
     name = "fuchsia-x64-cast",
     branch_selector = branches.STANDARD_MILESTONE,
+    builderless = not settings.is_master,
     main_list_view = "try",
     tryjob = try_.job(),
 )
@@ -899,6 +900,7 @@ try_.chromium_linux_builder(
 try_.chromium_linux_builder(
     name = "fuchsia_arm64",
     branch_selector = branches.STANDARD_MILESTONE,
+    builderless = not settings.is_master,
     main_list_view = "try",
     tryjob = try_.job(),
 )
@@ -906,6 +908,7 @@ try_.chromium_linux_builder(
 try_.chromium_linux_builder(
     name = "fuchsia_x64",
     branch_selector = branches.STANDARD_MILESTONE,
+    builderless = not settings.is_master,
     main_list_view = "try",
     tryjob = try_.job(),
 )