De-client tracing.TraceController interface

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/common/tracing_impl.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"
@@ skipping 18 matching lines @@
   DefaultWindowManager()
       : window_manager_app_(new WindowManagerApp(this, this)),
         view_manager_(NULL),
         root_(NULL) {}
   ~DefaultWindowManager() override {}
 
  private:
   // Overridden from mojo::ApplicationDelegate:
   void Initialize(mojo::ApplicationImpl* impl) override {
     window_manager_app_->Initialize(impl);
-    mojo::TracingImpl::Create(impl);
+    tracing_.Initialize(impl);
   }
   bool ConfigureIncomingConnection(
       mojo::ApplicationConnection* connection) override {
     window_manager_app_->ConfigureIncomingConnection(connection);
     return true;
   }
 
   // Overridden from ViewManagerDelegate:
   void OnEmbed(ViewManager* view_manager,
                View* root,
@@ skipping 12 matching lines @@
     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::TracingImpl tracing_;
 
   MOJO_DISALLOW_COPY_AND_ASSIGN(DefaultWindowManager);
 };
 
 }  // namespace window_manager
 
 MojoResult MojoMain(MojoHandle shell_handle) {
   mojo::ApplicationRunnerChromium runner(
       new window_manager::DefaultWindowManager);
   return runner.Run(shell_handle);
 }