[Chromecast] Add connectivity checking for Chromecast.

chromecast/browser/cast_resource_dispatcher_host_delegate.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 "chromecast/browser/cast_resource_dispatcher_host_delegate.h"
+
+#include "chromecast/browser/cast_browser_process.h"
+#include "chromecast/net/connectivity_checker.h"
+#include "net/base/net_errors.h"
+#include "net/url_request/url_request.h"
+
+namespace chromecast {
+namespace shell {
+
+void CastResourceDispatcherHostDelegate::RequestComplete(
+    net::URLRequest* url_request) {
+  if (!url_request->status().is_success()) {
+    LOG(ERROR) << "Failed to load resource " << url_request->url()
+               << "; status:" << url_request->status().status() << ", error:"
+               << net::ErrorToShortString(url_request->status().error());
+    CastBrowserProcess::GetInstance()->connectivity_checker()->Check();
+  }
+}
+
+}  // namespace shell
+}  // namespace chromecast