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

services/ui/view_manager/view_manager_app.cc

Index: services/ui/view_manager/view_manager_app.cc
diff --git a/services/ui/view_manager/view_manager_app.cc b/services/ui/view_manager/view_manager_app.cc
index 3ea2d69231019d5a6b0176bbb4a60a8bfc5c7038..7a80178ef8c7d79816c3147140d39142b6b84499 100644
--- a/services/ui/view_manager/view_manager_app.cc
+++ b/services/ui/view_manager/view_manager_app.cc
@@ -33,7 +33,7 @@ void ViewManagerApp::Initialize(mojo::ApplicationImpl* app_impl) {
   settings.logging_dest = logging::LOG_TO_SYSTEM_DEBUG_LOG;
   logging::InitLogging(settings);
 
-  tracing_.Initialize(app_impl_);
+  tracing_.Initialize(app_impl_->shell(), &app_impl_->args());
 
   // Connect to compositor.
   mojo::gfx::composition::CompositorPtr compositor;