GN: Mojo wget, sample_app, surfaces app and component build

mojo/examples/wget/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.
 
-group("public") {
+import("//mojo/system.gni")
+
+# GYP version: mojo/mojo_examples.gypi:mojo_wget
+shared_library("wget") {
+  output_name = "mojo_wget"
+
   deps = [
-    "//mojo/public/c/system",
+    "//mojo/public/cpp/application:main_standalone",
     "//mojo/public/cpp/application:standalone",
     "//mojo/public/cpp/bindings",
     "//mojo/public/cpp/environment:standalone",
     "//mojo/public/cpp/utility",
-    "//mojo/public/interfaces/bindings/tests:test_interfaces",
-    "//mojo/public/interfaces/application",
-    "//mojo/public/js/bindings",
+    "//mojo/services/public/interfaces/network",
   ]
+  deps += mojo_system_for_shared_library
 
-  if (is_android) {
-    deps += [
-      "//mojo/public/java:system",
-      "//mojo/public/java:bindings",
-    ]
-  }
+  sources = [
+    "wget.cc"
+  ]
 }