Mozart: Enhance tile app to test various sync behaviors.

examples/ui/tile/tile_app.h

 // 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.
 
 #ifndef EXAMPLES_UI_TILE_TILE_APP_H_
 #define EXAMPLES_UI_TILE_TILE_APP_H_
 
 #include "mojo/ui/view_provider_app.h"
 
 namespace examples {
 
+struct TileParams;
+
 class TileApp : public mojo::ui::ViewProviderApp {
  public:
   TileApp();
   ~TileApp() override;
 
   void CreateView(
       const std::string& connection_url,
       mojo::InterfaceRequest<mojo::ui::ViewOwner> view_owner_request,
       mojo::InterfaceRequest<mojo::ServiceProvider> services,
       mojo::InterfaceHandle<mojo::ServiceProvider> exposed_services) override;
 
  private:
+  bool ParseParams(const std::string& connection_url, TileParams* params);
+
   DISALLOW_COPY_AND_ASSIGN(TileApp);
 };
 
 }  // namespace examples
 
 #endif  // EXAMPLES_UI_TILE_TILE_APP_H_