[gn check] Enable //chrome/test:usage_time_limit_unittests

As part of this, we remove files from being built in the target itself
that are also built in //chrome/browser/chromeos, now a dependency of
this target. This also entails filling in missing deps in
//chrome/browser/chromeos itself that then were revealed, as well as
having the usage_time_limit_unittests target depend directly on
//chrome/browser as well (//chrome/browser/chromeos requires
//chrome/browser to be built but cannot depend on it in GN due to a
dependency cycle :\).

Bug: 1158929
Change-Id: Ida25548b2b39db1a9ee4665f3b8a170471772237
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2909545
Commit-Queue: Colin Blundell <blundell@chromium.org>
Reviewed-by: Jochen Eisinger <jochen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#887095}

.gn

@@ -66,7 +66,6 @@ no_check_targets = [
   "//chrome/test:interactive_ui_tests",
   "//chrome/test:unit_tests",
   "//chrome/test:unit_tests__library",
-  "//chrome/test:usage_time_limit_unittests",
   "//chrome/test:xr_browser_tests_common",
   "//extensions/browser:*",  # 20 errors
   "//extensions:*",  # 75 errors

chrome/browser/chromeos/BUILD.gn

@@ -32,6 +32,8 @@ source_set("chromeos") {
     "//chrome/app/theme:chrome_unscaled_resources",
     "//chrome/app/theme:theme_resources",
     "//chrome/browser/chromeos/power/ml:user_activity_ukm_logger_helpers",
+    "//chrome/browser/ui/webui/chromeos/crostini_installer:mojo_bindings",
+    "//chrome/browser/ui/webui/chromeos/emoji:mojo_bindings",
     "//chromeos/components/security_token_pin",
     "//chromeos/dbus:anomaly_detector_proto",
     "//chromeos/dbus:cicerone_proto",

chrome/test/BUILD.gn

@@ -8320,17 +8320,15 @@ if (is_chromeos_ash) {
       "../browser/ash/child_accounts/time_limit_consistency_test/consistency_test_utils.h",
       "../browser/ash/child_accounts/time_limit_consistency_test/proto_matcher.h",
       "../browser/ash/child_accounts/time_limit_consistency_test/run_all_unittests.cc",
-      "../browser/ash/child_accounts/time_limit_override.cc",
-      "../browser/ash/child_accounts/time_limit_override.h",
       "../browser/ash/child_accounts/time_limit_test_utils.cc",
       "../browser/ash/child_accounts/time_limit_test_utils.h",
-      "../browser/ash/child_accounts/usage_time_limit_processor.cc",
-      "../browser/ash/child_accounts/usage_time_limit_processor.h",
     ]
     deps = [
       ":consistency_golden_proto",
       "//base",
       "//base/test:test_support",
+      "//chrome/browser",
+      "//chrome/browser/chromeos",
       "//chromeos/settings",
       "//testing/gmock",
       "//testing/gtest",