Fix assertion starting cast_shell (breaking thread IO restrictions).

chromecast/browser/service/cast_service_simple.h

 // 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.
 
 #ifndef CHROMECAST_BROWSER_SERVICE_CAST_SERVICE_SIMPLE_H_
 #define CHROMECAST_BROWSER_SERVICE_CAST_SERVICE_SIMPLE_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "chromecast/browser/service/cast_service.h"
+#include "url/gurl.h"
 
 namespace content {
 class WebContents;
 }
 
 namespace chromecast {
 class CastContentWindow;
 
 class CastServiceSimple : public CastService {
  public:
   CastServiceSimple(content::BrowserContext* browser_context,
                     PrefService* pref_service,
                     metrics::CastMetricsServiceClient* metrics_service_client);
   ~CastServiceSimple() override;
 
  protected:
   // CastService implementation:
   void InitializeInternal() override;
   void FinalizeInternal() override;
   void StartInternal() override;
   void StopInternal() override;
 
  private:
   scoped_ptr<CastContentWindow> window_;
   scoped_ptr<content::WebContents> web_contents_;
+  GURL startup_url_;
 
   DISALLOW_COPY_AND_ASSIGN(CastServiceSimple);
 };
 
 }  // namespace chromecast
 
 #endif  // CHROMECAST_BROWSER_SERVICE_CAST_SERVICE_SIMPLE_H_