[Android Webview] Refactor LoadUrlTest and work on embedded_test_server custom handler

android_webview/embeddedtestserver/test/android/aw_test_jni_onload.cc

+// 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.
+
+#include "android_webview/embeddedtestserver/test/android/aw_test_jni_onload.h"
+
+#include "android_webview/embeddedtestserver/aw_embedded_test_server_android.h"
+#include "base/android/base_jni_onload.h"
+#include "base/android/base_jni_registrar.h"
+#include "base/android/jni_android.h"
+#include "base/bind.h"
+
+namespace net {
+namespace test {
+
+namespace {
+
+bool RegisterJNI(JNIEnv* env) {
+  return net::test_server::AwEmbeddedTestServerAndroid::
+      RegisterAwEmbeddedTestServerAndroid(env);
+}
+
+}  // namesapce
+
+bool OnJNIOnLoadRegisterJNI(JNIEnv* env) {
+  return base::android::OnJNIOnLoadRegisterJNI(env) &&
+         base::android::RegisterJni(env) && RegisterJNI(env);
+}
+
+bool OnJNIOnLoadInit() {
+  return base::android::OnJNIOnLoadInit();
+}
+
+}  // namespace test
+}  // namespace net