De-client tracing.TraceController interface

shell/context.h

 // Copyright 2013 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 SHELL_CONTEXT_H_
 #define SHELL_CONTEXT_H_
 
 #include <string>
 
 #include "base/macros.h"
 #include "mojo/application_manager/application_manager.h"
+#include "mojo/common/trace_controller_impl.h"
 #include "shell/mojo_url_resolver.h"
 #include "shell/task_runners.h"
 
 namespace mojo {
 
 class Spy;
 
 namespace shell {
 
 class DynamicApplicationLoader;
@@ skipping 23 matching lines @@
   // ApplicationManager::Delegate override.
   void OnApplicationError(const GURL& url) override;
   GURL ResolveURL(const GURL& url) override;
 
   std::set<GURL> app_urls_;
   scoped_ptr<TaskRunners> task_runners_;
   scoped_ptr<ExternalApplicationListener> listener_;
   ApplicationManager application_manager_;
   MojoURLResolver mojo_url_resolver_;
   scoped_ptr<Spy> spy_;
+  TraceControllerImpl trace_controller_;
 
   DISALLOW_COPY_AND_ASSIGN(Context);
 };
 
 }  // namespace shell
 }  // namespace mojo
 
 #endif  // SHELL_CONTEXT_H_