Linux sandbox: refactor BrokerProcess class

sandbox/linux/BUILD.gn

 # Copyright 2014 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.
 
 import("//build/config/features.gni")
 
 declare_args() {
   compile_suid_client = is_linux
 
   compile_credentials = is_linux
@@ skipping 49 matching lines @@
     ]
     deps += [
       ":seccomp_bpf",
     ]
   }
 }
 
 # The main sandboxing test target.
 test("sandbox_linux_unittests") {
   sources = [
-    "services/broker_process_unittest.cc",
     "services/scoped_process_unittest.cc",
     "services/thread_helpers_unittests.cc",
     "services/yama_unittests.cc",
+    "syscall_broker/broker_process_unittest.cc",
     "tests/main.cc",
     "tests/scoped_temporary_file.cc",
     "tests/scoped_temporary_file.h",
     "tests/scoped_temporary_file_unittest.cc",
     "tests/unit_tests_unittest.cc",
   ]
 
   deps = [
     ":sandbox",
     ":sandbox_linux_test_utils",
@@ skipping 128 matching lines @@
       "-std=gnu99",
       # These files have a suspicious comparison.
       # TODO fix this and re-enable this warning.
       "-Wno-sign-compare",
     ]
   }
 }
 
 component("sandbox_services") {
   sources = [
-    "services/broker_process.cc",
-    "services/broker_process.h",
     "services/init_process_reaper.cc",
     "services/init_process_reaper.h",
     "services/scoped_process.cc",
     "services/scoped_process.h",
     "services/thread_helpers.cc",
     "services/thread_helpers.h",
     "services/yama.h",
     "services/yama.cc",
+    "syscall_broker/broker_client.cc",
+    "syscall_broker/broker_client.h",
+    "syscall_broker/broker_common.h",
+    "syscall_broker/broker_host.cc",
+    "syscall_broker/broker_host.h",
+    "syscall_broker/broker_policy.cc",
+    "syscall_broker/broker_policy.h",
+    "syscall_broker/broker_process.cc",
+    "syscall_broker/broker_process.h",
   ]
 
   defines = [ "SANDBOX_IMPLEMENTATION" ]
 
   if (compile_credentials) {
     sources += [
       "services/credentials.cc",
       "services/credentials.h",
     ]
     # For capabilities.cc.
@@ skipping 74 matching lines @@
   #      'type': 'none',
   #      'variables': {
   #        'test_suite_name': 'sandbox_linux_jni_unittests',
   #      },
   #      'dependencies': [
   #        'sandbox_linux_jni_unittests',
   #      ],
   #      'includes': [ '../../build/apk_test.gypi' ],
   #      }
 }