PlzNavigate: Add first version of NavigationURLLoader.

content/browser/loader/navigation_url_loader_impl.cc

Index: content/browser/loader/navigation_url_loader_impl.cc
diff --git a/content/browser/loader/navigation_url_loader_impl.cc b/content/browser/loader/navigation_url_loader_impl.cc
new file mode 100644
index 0000000000000000000000000000000000000000..595de205c0621259de666c81b0b1c5865c1dfd02
--- /dev/null
+++ b/content/browser/loader/navigation_url_loader_impl.cc
@@ -0,0 +1,34 @@
+// 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.
+
+#include "content/browser/loader/navigation_url_loader_impl.h"
+
+#include "content/browser/frame_host/navigation_request_info.h"
+#include "content/browser/loader/navigation_url_loader_core.h"
+
+namespace content {
+
+NavigationURLLoaderImpl::NavigationURLLoaderImpl(
+    BrowserContext* browser_context,
+    int64 frame_tree_node_id,
+    const CommonNavigationParams& common_params,
+    scoped_ptr<NavigationRequestInfo> request_info,
+    ResourceRequestBody* request_body,
+    NavigationURLLoader::Delegate* delegate)
+    : core_(new NavigationURLLoaderCore) {
+  core_->set_delegate(delegate);
+  core_->StartRequest(browser_context, frame_tree_node_id,
+                      common_params, request_info.Pass(), request_body);
+}
+
+NavigationURLLoaderImpl::~NavigationURLLoaderImpl() {
+  core_->Cancel();
+  core_->set_delegate(nullptr);
+}
+
+void NavigationURLLoaderImpl::FollowRedirect() {
+  core_->FollowRedirect();
+}
+
+}  // namespace content