Factor out the test web contents from the WebContents unit test so that it ca...

chrome/browser/tab_contents/test_web_contents.cc

+// Copyright (c) 2009 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 "chrome/browser/renderer_host/test_render_view_host.h"
+#include "chrome/browser/tab_contents/test_web_contents.h"
+
+TestWebContents::TestWebContents(Profile* profile, SiteInstance* instance,
+                                 RenderViewHostFactory* rvh_factory)
+    : WebContents(profile, instance, rvh_factory, MSG_ROUTING_NONE, NULL),
+      transition_cross_site(false) {
+}
+
+TestRenderViewHost* TestWebContents::pending_rvh() {
+  return static_cast<TestRenderViewHost*>(
+      render_manager_.pending_render_view_host_);
+}