Some scoped_ptr -> std::unique_ptr conversion, especially under //mojo.

services/dart/content_handler_app.h

Index: services/dart/content_handler_app.h
diff --git a/services/dart/content_handler_app.h b/services/dart/content_handler_app.h
index 30c5ed1cf6ad69cedb71f9b41a9562c7f0aa1f9c..43b205b1f24a843f3226d4607504c15e5cd4ddc9 100644
--- a/services/dart/content_handler_app.h
+++ b/services/dart/content_handler_app.h
@@ -26,7 +26,7 @@ class DartContentHandler : public mojo::ContentHandlerFactory::ManagedDelegate {
 
  private:
   // Overridden from ContentHandlerFactory::ManagedDelegate:
-  scoped_ptr<mojo::ContentHandlerFactory::HandledApplicationHolder>
+  std::unique_ptr<mojo::ContentHandlerFactory::HandledApplicationHolder>
   CreateApplication(
       mojo::InterfaceRequest<mojo::Application> application_request,
       mojo::URLResponsePtr response) override;