chromium_3pp: Add initial linux-arm64 CI and try bots.

Introduced packager_vars.star so that properties will be the shared
between CI and matching try builders.

Also reorg the following builder to use a similar starlark structure:
* android-androidx-packager
* android-avd-packager
* android-sdk-packager

Bug: 1132368
Change-Id: I8001cfa818c2e647cc513e46a2f166fbe1e253df
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2625271
Commit-Queue: Haiyang Pan <hypan@google.com>
Reviewed-by: Garrett Beaty <gbeaty@chromium.org>
Cr-Commit-Position: refs/heads/master@{#843125}

infra/config/generated/commit-queue.cfg

@@ -185,6 +185,10 @@ config_groups {
         name: "chromium/codesearch/gen-win-try"
         includable_only: true
       }
+      builders {
+        name: "chromium/try/3pp-linux-amd64-packager"
+        includable_only: true
+      }
       builders {
         name: "chromium/try/android-10-arm64-rel"
         includable_only: true

infra/config/generated/luci-scheduler.cfg

@@ -4,6 +4,17 @@
 # For the schema of this file, see ProjectConfig message:
 #   https://luci-config.appspot.com/schemas/projects:luci-scheduler.cfg
 
+job {
+  id: "3pp-linux-amd64-packager"
+  realm: "ci"
+  schedule: "0 7 * * 0 *"
+  acl_sets: "ci"
+  buildbucket {
+    server: "cr-buildbucket.appspot.com"
+    bucket: "luci.chromium.ci"
+    builder: "3pp-linux-amd64-packager"
+  }
+}
 job {
   id: "ASAN Debug"
   realm: "ci"

infra/config/generated/realms.cfg

@@ -207,6 +207,7 @@ realms {
   name: "try"
   bindings {
     role: "role/buildbucket.builderServiceAccount"
+    principals: "user:chromium-cipd-try-builder@chops-service-accounts.iam.gserviceaccount.com"
     principals: "user:chromium-try-builder@chops-service-accounts.iam.gserviceaccount.com"
     principals: "user:chromium-try-gpu-builder@chops-service-accounts.iam.gserviceaccount.com"
   }

infra/config/lib/ci.star

@@ -234,6 +234,23 @@ def angle_windows_builder(*, name, **kwargs):
         **kwargs
     )
 
+def cipd_builder(*, name, **kwargs):
+    return ci_builder(
+        name = name,
+        builder_group = "chromium.packager",
+        service_account = "chromium-cipd-builder@chops-service-accounts.iam.gserviceaccount.com",
+        **kwargs
+    )
+
+def cipd_3pp_builder(*, name, os, properties, **kwargs):
+    return cipd_builder(
+        name = name,
+        executable = "recipe:chromium_3pp",
+        os = os,
+        properties = properties,
+        **kwargs
+    )
+
 def chromium_builder(*, name, tree_closing = True, **kwargs):
     return ci_builder(
         name = name,
@@ -759,6 +776,8 @@ ci = struct(
     angle_windows_builder = angle_windows_builder,
     chromium_builder = chromium_builder,
     chromiumos_builder = chromiumos_builder,
+    cipd_3pp_builder = cipd_3pp_builder,
+    cipd_builder = cipd_builder,
     clang_builder = clang_builder,
     clang_mac_builder = clang_mac_builder,
     dawn_linux_builder = dawn_linux_builder,

infra/config/lib/try.star

@@ -414,6 +414,23 @@ def chromium_win_builder(
         **kwargs
     )
 
+def cipd_builder(*, name, **kwargs):
+    return try_builder(
+        name = name,
+        service_account = "chromium-cipd-try-builder@chops-service-accounts.iam.gserviceaccount.com",
+        **kwargs
+    )
+
+def cipd_3pp_builder(*, name, os, properties, **kwargs):
+    return cipd_builder(
+        name = name,
+        builder_group = "tryserver.chromium.packager",
+        executable = "recipe:chromium_3pp",
+        os = os,
+        properties = properties,
+        **kwargs
+    )
+
 def gpu_try_builder(*, name, builderless = False, execution_timeout = 6 * time.hour, **kwargs):
     return try_builder(
         name = name,
@@ -485,6 +502,8 @@ try_ = struct(
     chromium_updater_mac_builder = chromium_updater_mac_builder,
     chromium_updater_win_builder = chromium_updater_win_builder,
     chromium_win_builder = chromium_win_builder,
+    cipd_3pp_builder = cipd_3pp_builder,
+    cipd_builder = cipd_builder,
     gpu_chromium_android_builder = gpu_chromium_android_builder,
     gpu_chromium_linux_builder = gpu_chromium_linux_builder,
     gpu_chromium_mac_builder = gpu_chromium_mac_builder,

infra/config/recipes.star

@@ -63,6 +63,10 @@ build_recipe(
     name = "recipe:chromium",
 )
 
+build_recipe(
+    name = "recipe:chromium_3pp",
+)
+
 build_recipe(
     name = "recipe:chromium_afl",
 )

infra/config/subprojects/chromium/packager_vars.star

+# Copyright 2020 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+def _chromium_3pp_properties(*, package_paths, platform):
+    """Declares the properties of a builder that use the recipe chromium_3pp.
+
+    See https://chromium.googlesource.com/chromium/tools/build/+/master/recipes/recipes/chromium_3pp.proto
+    for the proto definitions.
+    """
+    return {
+        "package_path": package_paths,
+        "platform": platform,
+    }
+
+# Define the properties of chromium 3pp packagers and should be shared between
+# CI and matching try builders.
+CHROMIUM_3PP_PROPERTIES = {
+    "3pp-linux-amd64-packager": _chromium_3pp_properties(
+        platform = "linux-amd64",
+        package_paths = [],
+    ),
+}

infra/config/subprojects/chromium/try.star

@@ -7,6 +7,7 @@ load("//lib/builders.star", "cpu", "goma", "os", "xcode")
 load("//lib/consoles.star", "consoles")
 load("//lib/try.star", "try_")
 load("//project.star", "settings")
+load("./packager_vars.star", "CHROMIUM_3PP_PROPERTIES")
 
 try_.defaults.set(
     bucket = "try",
@@ -147,6 +148,10 @@ consoles.list_view(
     branch_selector = branches.STANDARD_MILESTONE,
 )
 
+consoles.list_view(
+    name = "tryserver.chromium.packager",
+)
+
 consoles.list_view(
     name = "tryserver.chromium.swangle",
 )
@@ -1579,6 +1584,12 @@ try_.chromium_win_builder(
     ),
 )
 
+try_.cipd_3pp_builder(
+    name = "3pp-linux-amd64-packager",
+    os = os.LINUX_DEFAULT,
+    properties = CHROMIUM_3PP_PROPERTIES["3pp-linux-amd64-packager"],
+)
+
 try_.gpu_chromium_android_builder(
     name = "android_optional_gpu_tests_rel",
     branch_selector = branches.STANDARD_MILESTONE,