Make TracingImpl take a Shell* and args, instead of an ApplicationImpl*.

services/ui/launcher/launcher_app.cc

 // 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.
 
 #include "services/ui/launcher/launcher_app.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/strings/string_split.h"
 #include "base/trace_event/trace_event.h"
@@ skipping 12 matching lines @@
 
 void LauncherApp::Initialize(mojo::ApplicationImpl* app_impl) {
   app_impl_ = app_impl;
 
   auto command_line = base::CommandLine::ForCurrentProcess();
   command_line->InitFromArgv(app_impl_->args());
   logging::LoggingSettings settings;
   settings.logging_dest = logging::LOG_TO_SYSTEM_DEBUG_LOG;
   logging::InitLogging(settings);
 
-  tracing_.Initialize(app_impl_);
+  tracing_.Initialize(app_impl_->shell(), &app_impl_->args());
   TRACE_EVENT0("launcher", __func__);
 
   InitCompositor();
   InitViewManager();
   InitViewAssociates(command_line->GetSwitchValueASCII("view_associate_urls"));
 
   for (size_t i = 0; i < command_line->GetArgs().size(); ++i) {
     Launch(command_line->GetArgs()[i]);
   }
 }
@@ skipping 86 matching lines @@
   LOG(ERROR) << "Exiting due to view manager connection error.";
   app_impl_->Terminate();
 }
 
 void LauncherApp::OnViewAssociateConnectionError() {
   LOG(ERROR) << "Exiting due to view associate connection error.";
   app_impl_->Terminate();
 };
 
 }  // namespace launcher