convert //mash to std::unique_ptr

mash/example/views_examples/views_examples_application_delegate.h

Index: mash/example/views_examples/views_examples_application_delegate.h
diff --git a/mash/example/views_examples/views_examples_application_delegate.h b/mash/example/views_examples/views_examples_application_delegate.h
index 3b4fb1124180552bf444cfe3abd0306898e2324a..75523102fc7147eb95268cc9114d0e5abfa97602 100644
--- a/mash/example/views_examples/views_examples_application_delegate.h
+++ b/mash/example/views_examples/views_examples_application_delegate.h
@@ -5,8 +5,9 @@
 #ifndef MASH_EXAMPLE_VIEWS_EXAMPLES_APPLICATION_DELEGATE_H_
 #define MASH_EXAMPLE_VIEWS_EXAMPLES_APPLICATION_DELEGATE_H_
 
+#include <memory>
+
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "mojo/services/tracing/public/cpp/tracing_impl.h"
 #include "mojo/shell/public/cpp/shell_client.h"
 
@@ -27,7 +28,7 @@ class ViewsExamplesApplicationDelegate : public mojo::ShellClient {
 
   mojo::TracingImpl tracing_;
 
-  scoped_ptr<views::AuraInit> aura_init_;
+  std::unique_ptr<views::AuraInit> aura_init_;
 
   DISALLOW_COPY_AND_ASSIGN(ViewsExamplesApplicationDelegate);
 };