Add an implementation of url_loader.mojom using OkHttp

sky/services/oknet/BUILD.gn

+# Copyright 2015 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("//build/config/android/config.gni")
+import("//build/config/android/rules.gni")
+
+android_library("oknet") {
+  java_files = [
+    "src/org/domokit/oknet/NetworkServiceImpl.java",
+    "src/org/domokit/oknet/UrlLoaderImpl.java",
+  ]
+
+  deps = [
+    "//mojo/public/java:bindings",
+    "//mojo/public/java:system",
+    "//mojo/services/network/public/interfaces:interfaces_java",
+    "//third_party/okhttp",
+    "//third_party/okhttp:okio",
+  ]
+}