mandoline: write this after lunch.

mash/wm/window_manager_application.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 MASH_WM_WINDOW_MANAGER_APPLICATION_H_
 #define MASH_WM_WINDOW_MANAGER_APPLICATION_H_
 
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
 #include "components/mus/common/types.h"
 #include "components/mus/public/cpp/window_manager_delegate.h"
 #include "components/mus/public/cpp/window_observer.h"
 #include "components/mus/public/cpp/window_tree_delegate.h"
 #include "components/mus/public/interfaces/window_manager.mojom.h"
 #include "components/mus/public/interfaces/window_tree_host.mojom.h"
 #include "mash/wm/public/interfaces/container.mojom.h"
 #include "mojo/application/public/cpp/application_delegate.h"
 #include "mojo/application/public/cpp/interface_factory_impl.h"
 #include "mojo/common/weak_binding_set.h"
+#include "mojo/services/tracing/public/cpp/tracing_impl.h"
 
 class BackgroundLayout;
 class ShelfLayout;
 class WindowLayout;
 class WindowManagerImpl;
 
 namespace ui {
 namespace mojo {
 class UIInit;
 }
@@ skipping 50 matching lines @@
 
   // Sets up the window containers used for z-space management.
   void CreateContainers();
 
   // nullptr until the Mus connection is established via OnEmbed().
   mus::Window* root_;
   int window_count_;
 
   mojo::ApplicationImpl* app_;
 
+  mojo::TracingImpl tracing_;
+
   mus::mojom::WindowTreeHostPtr host_;
 
   scoped_ptr<ui::mojo::UIInit> ui_init_;
   scoped_ptr<views::AuraInit> aura_init_;
 
   // |window_manager_| is created once OnEmbed() is called. Until that time
   // |requests_| stores any pending WindowManager interface requests.
   scoped_ptr<WindowManagerImpl> window_manager_;
   mojo::WeakBindingSet<mus::mojom::WindowManager> window_manager_binding_;
   ScopedVector<mojo::InterfaceRequest<mus::mojom::WindowManager>> requests_;
 
   scoped_ptr<BackgroundLayout> background_layout_;
   scoped_ptr<ShelfLayout> shelf_layout_;
   scoped_ptr<WindowLayout> window_layout_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowManagerApplication);
 };
 
 #endif  // MASH_WM_WINDOW_MANAGER_APPLICATION_H_