Delivering the FIRST_NONEMPTY_PAINT phase changing event to base/

components/metrics/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.
 
 # GYP version: components/metrics.gypi:metrics
 source_set("metrics") {
   sources = [
     "call_stack_profile_metrics_provider.cc",
     "call_stack_profile_metrics_provider.h",
     "clean_exit_beacon.cc",
@@ skipping 104 matching lines @@
   ]
 }
 
 # GYP version: components/metrics.gypi:metrics_profiler
 source_set("profiler") {
   sources = [
     "profiler/profiler_metrics_provider.cc",
     "profiler/profiler_metrics_provider.h",
     "profiler/tracking_synchronizer.cc",
     "profiler/tracking_synchronizer.h",
+    "profiler/tracking_synchronizer_observer.cc",
     "profiler/tracking_synchronizer_observer.h",
   ]
 
   public_deps = [
     ":metrics",
   ]
   deps = [
     "//base",
     "//components/variations",
     "//content/public/browser",
@@ skipping 55 matching lines @@
     ":profiler",
     ":test_support",
     "//base:prefs_test_support",
     "//base/test:test_support",
     "//components/variations",
     "//content/public/common",
     "//testing/gtest",
   ]
 }
 # TODO(GYP): metrics_chromeos