Makes views be initially hidden

mojo/services/window_manager/main.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 "base/memory/scoped_ptr.h"
 #include "mojo/application/application_runner_chromium.h"
 #include "mojo/public/c/system/main.h"
 #include "mojo/public/cpp/application/application_delegate.h"
 #include "mojo/public/cpp/application/service_provider_impl.h"
 #include "mojo/services/public/cpp/view_manager/view_manager.h"
@@ skipping 35 matching lines @@
     view_manager_ = view_manager;
     root_ = root;
   }
   void OnViewManagerDisconnected(ViewManager* view_manager) override {}
 
   // Overridden from WindowManagerDelegate:
   void Embed(const String& url,
              InterfaceRequest<ServiceProvider> service_provider) override {
     View* view = View::Create(view_manager_);
     root_->AddChild(view);
+    view->SetVisible(true);
     view->Embed(url, scoped_ptr<mojo::ServiceProviderImpl>(
         new mojo::ServiceProviderImpl).Pass());
   }
 
   scoped_ptr<WindowManagerApp> window_manager_app_;
 
   ViewManager* view_manager_;
   View* root_;
 
   MOJO_DISALLOW_COPY_AND_ASSIGN(DefaultWindowManager);
 };
 
 }  // namespace mojo
 
 MojoResult MojoMain(MojoHandle shell_handle) {
   mojo::ApplicationRunnerChromium runner(new mojo::DefaultWindowManager);
   return runner.Run(shell_handle);
 }