Move URL Loader creation to a separate factory object.

mojo/services/network/url_loader_factory_impl.cc

+// 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.
+
+#include "mojo/services/network/url_loader_factory_impl.h"
+
+#include "mojo/services/network/url_loader_impl.h"
+
+namespace mojo {
+
+URLLoaderFactoryImpl::URLLoaderFactoryImpl(
+    ApplicationConnection* connection,
+    NetworkContext* context,
+    scoped_ptr<mojo::AppRefCount> app_refcount,
+    InterfaceRequest<URLLoaderFactory> request)
+    : context_(context),
+      app_refcount_(app_refcount.Pass()),
+      binding_(this, request.Pass()) {
+}
+
+URLLoaderFactoryImpl::~URLLoaderFactoryImpl() {
+}
+
+void URLLoaderFactoryImpl::CreateURLLoader(InterfaceRequest<URLLoader> loader) {
+  // TODO(darin): Plumb origin. Use for CORS.
+  // TODO(beng): Figure out how to get origin through to here.
+  // The loader will delete itself when the pipe is closed, unless a request is
+  // in progress. In which case, the loader will delete itself when the request
+  // is finished.
+  new URLLoaderImpl(context_, loader.Pass(), app_refcount_->Clone());
+}
+
+}  // namespace mojo