Convert //gin to use std::unique_ptr

gin/modules/timer_unittest.cc

Index: gin/modules/timer_unittest.cc
diff --git a/gin/modules/timer_unittest.cc b/gin/modules/timer_unittest.cc
index 612275e4729becc079cc71fa2ca27b84020e8c02..1739e5765df1eeabfbfa9ff1c704fd1d5eab036f 100644
--- a/gin/modules/timer_unittest.cc
+++ b/gin/modules/timer_unittest.cc
@@ -4,7 +4,8 @@
 
 #include "gin/modules/timer.h"
 
-#include "base/memory/scoped_ptr.h"
+#include <memory>
+
 #include "base/message_loop/message_loop.h"
 #include "gin/handle.h"
 #include "gin/object_template_builder.h"
@@ -71,7 +72,7 @@ struct TestHelper {
   }
 
   ShellRunnerDelegate delegate;
-  scoped_ptr<ShellRunner> runner;
+  std::unique_ptr<ShellRunner> runner;
   Runner::Scope scope;
   Handle<TimerModule> timer_module;
   Handle<Result> result;