tracing: the recorder implementation

services/resource_coordinator/tracing/BUILD.gn

Index: services/resource_coordinator/tracing/BUILD.gn
diff --git a/services/resource_coordinator/tracing/BUILD.gn b/services/resource_coordinator/tracing/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..866a17911bf490c709c88741dba62331d72a2dff
--- /dev/null
+++ b/services/resource_coordinator/tracing/BUILD.gn
@@ -0,0 +1,16 @@
+# 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.
+
+source_set("lib") {
+  sources = [
+    "recorder.cc",
+    "recorder.h",
+  ]
+
+  public_deps = [
+    "//base",
+    "//mojo/common",
+    "//services/resource_coordinator/public/cpp:resource_coordinator_cpp",
+  ]
+}