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

services/java_handler/java_handler.cc

Index: services/java_handler/java_handler.cc
diff --git a/services/java_handler/java_handler.cc b/services/java_handler/java_handler.cc
index b7949de8e9eabf24271c3a478a3c3b219129013f..177eee15ca59897315afffd2c50b4334eee46444 100644
--- a/services/java_handler/java_handler.cc
+++ b/services/java_handler/java_handler.cc
@@ -90,7 +90,7 @@ void JavaHandler::RunApplication(
 }
 
 void JavaHandler::Initialize(mojo::ApplicationImpl* app) {
-  tracing_.Initialize(app);
+  tracing_.Initialize(app->shell(), &app->args());
   handler_task_runner_ = base::MessageLoop::current()->task_runner();
   mojo::ConnectToService(app->shell(), "mojo:url_response_disk_cache",
                          GetProxy(&url_response_disk_cache_));