Create favicon_url mirror in components/favicon.

components/favicon/core/favicon_url.cc

+// 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 "components/favicon/core/favicon_url.h"
+
+namespace favicon {
+
+FaviconURL::FaviconURL() : icon_type(favicon_base::INVALID_ICON) {
+}
+
+FaviconURL::FaviconURL(const GURL& url,
+                       favicon_base::IconType type,
+                       const std::vector<gfx::Size>& sizes)
+    : icon_url(url), icon_type(type), icon_sizes(sizes) {
+}
+
+FaviconURL::~FaviconURL() {
+}
+
+}  // namespace favicon