mandoline: write this after lunch.

components/mus/example/views_examples/views_examples_application_delegate.cc

Index: components/mus/example/views_examples/views_examples_application_delegate.cc
diff --git a/components/mus/example/views_examples/views_examples_application_delegate.cc b/components/mus/example/views_examples/views_examples_application_delegate.cc
index a1ac1f203d36c18e63b325fa20c39c2b45f607a6..176de7f6d3f128aa21375c37e7b0ce325b86cf8e 100644
--- a/components/mus/example/views_examples/views_examples_application_delegate.cc
+++ b/components/mus/example/views_examples/views_examples_application_delegate.cc
@@ -17,6 +17,7 @@ ViewsExamplesApplicationDelegate::~ViewsExamplesApplicationDelegate() {
 }
 
 void ViewsExamplesApplicationDelegate::Initialize(mojo::ApplicationImpl* app) {
+  tracing_.Initialize(app);
   aura_init_.reset(new views::AuraInit(app, "views_mus_resources.pak"));
 
   views::WindowManagerConnection::Create(app);