carrier_lock: Implement the main lock manager class

The main Cellular Carrier Lock class responsible for checking state
of the device and applying lock configuration on cellular modem.

Bug: b:262288980
Test: CarrierLockStartManager

Change-Id: I65520ed4799a36fdc0a3e0185b6923088ca35893
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3870931
Reviewed-by: Regan Hsu <hsuregan@chromium.org>
Reviewed-by: Gordon Seto <gordonseto@google.com>
Reviewed-by: Rushan Suleymanov <rushans@google.com>
Reviewed-by: Achuith Bhandarkar <achuith@chromium.org>
Commit-Queue: Michał Mazur <michamazur@google.com>
Cr-Commit-Position: refs/heads/main@{#1209894}

chromeos/ash/components/carrier_lock/BUILD.gn

@@ -14,7 +14,6 @@ component("carrier_lock") {
   deps = [
     ":carrier_lock_proto",
     "//base",
-    "//chrome/browser:browser_process",
     "//chromeos/ash/components/dbus/shill",
     "//chromeos/ash/components/network",
     "//chromeos/ash/components/system",
@@ -30,6 +29,10 @@ component("carrier_lock") {
   ]
 
   sources = [
+    "//chromeos/ash/components/network/fake_network_3gpp_handler.cc",
+    "//chromeos/ash/components/network/fake_network_3gpp_handler.h",
+    "carrier_lock_manager.cc",
+    "carrier_lock_manager.h",
     "common.h",
     "fake_fcm_topic_subscriber.cc",
     "fake_fcm_topic_subscriber.h",
@@ -55,6 +58,7 @@ source_set("unit_tests") {
   testonly = true
 
   sources = [
+    "carrier_lock_manager_unittest.cc",
     "fcm_topic_subscriber_unittest.cc",
     "provisioning_config_fetcher_unittest.cc",
     "psm_claim_verifier_unittest.cc",

chromeos/ash/components/carrier_lock/DEPS

@@ -1,5 +1,8 @@
 include_rules = [
+  "+chromeos/ash/components/network",
+  "+chromeos/ash/components/system",
   "+components/gcm_driver",
+  "+components/session_manager",
   "+google_apis",
   "+third_party/private_membership",
 ]