Build libraries for a number of services.

services/files/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("//mojo/public/mojo_application.gni")
 
 mojo_native_application("files") {
   sources = [
+    "main.cc",
+  ]
+
+  deps = [
+    ":lib",
+    "//mojo/application",
+  ]
+}
+
+source_set("lib") {
+  sources = [
     "directory_impl.cc",
     "directory_impl.h",
     "file_impl.cc",
     "file_impl.h",
+    "files_app.cc",
+    "files_app.h",
     "files_impl.cc",
     "files_impl.h",
     "futimens.h",
     "futimens_android.cc",
-    "main.cc",
     "shared_impl.cc",
     "shared_impl.h",
     "util.cc",
     "util.h",
   ]
 
   deps = [
     "//base",
     "//mojo/application",
     "//mojo/common",
@@ skipping 22 matching lines @@
     "//mojo/application:test_support",
     "//mojo/public/cpp/bindings",
     "//mojo/services/files/interfaces",
     "//mojo/services/files/interfaces:interfaces_sync",
   ]
 
   data_deps = [
     ":files($default_toolchain)",
   ]
 }