[GRC] Coordination Unit Graph Observer

services/resource_coordinator/BUILD.gn

 # Copyright 2017 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.
 
 # There should be only one resource coordinator. It is currently
 # in the browser process. So, only //content/browser should link to this target.
 # Others modules should only need the public targets.
 import("//services/catalog/public/tools/catalog.gni")
 import("//services/service_manager/public/cpp/service.gni")
 import("//services/service_manager/public/service_manifest.gni")
 import("//services/service_manager/public/tools/test/service_test.gni")
 
 source_set("lib") {
   sources = [
     "coordination_unit/coordination_unit_factory.cc",
     "coordination_unit/coordination_unit_factory.h",
+    "coordination_unit/coordination_unit_graph_observer.cc",
+    "coordination_unit/coordination_unit_graph_observer.h",
     "coordination_unit/coordination_unit_impl.cc",
     "coordination_unit/coordination_unit_impl.h",
     "coordination_unit/coordination_unit_manager.cc",
     "coordination_unit/coordination_unit_manager.h",
     "coordination_unit/coordination_unit_provider_impl.cc",
     "coordination_unit/coordination_unit_provider_impl.h",
     "coordination_unit/process_coordination_unit_impl.cc",
     "coordination_unit/process_coordination_unit_impl.h",
     "memory_instrumentation/coordinator_impl.cc",
     "memory_instrumentation/coordinator_impl.h",
@@ skipping 24 matching lines @@
   deps = [
     ":lib",
     "//mojo/public/cpp/system",
   ]
 }
 
 source_set("tests") {
   testonly = true
 
   sources = [
+    "coordination_unit/coordination_unit_graph_observer_unittest.cc",
     "coordination_unit/coordination_unit_impl_unittest.cc",
     "coordination_unit/coordination_unit_impl_unittest_util.cc",
     "coordination_unit/coordination_unit_impl_unittest_util.h",
     "coordination_unit/process_coordination_unit_impl_unittest.cc",
     "memory_instrumentation/coordinator_impl_unittest.cc",
     "memory_instrumentation/process_map_unittest.cc",
     "public/cpp/memory_instrumentation/client_process_impl_unittest.cc",
     "public/cpp/tracing/chrome_trace_event_agent_unittest.cc",
     "tracing/agent_registry_unittest.cc",
     "tracing/recorder_unittest.cc",
@@ skipping 25 matching lines @@
 service_manifest("unittest_manifest") {
   name = "resource_coordinator_unittests"
   source = "unittest_manifest.json"
 }
 
 catalog("tests_catalog") {
   testonly = true
   embedded_services = [ ":unittest_manifest" ]
   standalone_services = [ ":manifest" ]
 }