Convert //services from scoped_ptr to std::unique_ptr

services/tracing/tracing_app.h

Index: services/tracing/tracing_app.h
diff --git a/services/tracing/tracing_app.h b/services/tracing/tracing_app.h
index b1dcd9f37464164a4e642bd36b8096a224044447..6ba6bfd49ad64f783092a89d3d45f8ddcb5a0467 100644
--- a/services/tracing/tracing_app.h
+++ b/services/tracing/tracing_app.h
@@ -7,8 +7,9 @@
 
 #include <stdint.h>
 
+#include <memory>
+
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
 #include "mojo/public/cpp/bindings/binding_set.h"
 #include "mojo/public/cpp/bindings/interface_ptr_set.h"
@@ -63,7 +64,7 @@ class TracingApp
 
   void AllDataCollected();
 
-  scoped_ptr<TraceDataSink> sink_;
+  std::unique_ptr<TraceDataSink> sink_;
   ScopedVector<TraceRecorderImpl> recorder_impls_;
   mojo::InterfacePtrSet<TraceProvider> provider_ptrs_;
   mojo::Binding<TraceCollector> collector_binding_;