Convert //base to use std::unique_ptr

base/test/launcher/test_launcher.h

Index: base/test/launcher/test_launcher.h
diff --git a/base/test/launcher/test_launcher.h b/base/test/launcher/test_launcher.h
index c311fed78844cda441cc60050dd9e4e30d78a6cc..38980cfd60ac3355f2aff06acacb8e8abc9bd0f8 100644
--- a/base/test/launcher/test_launcher.h
+++ b/base/test/launcher/test_launcher.h
@@ -228,7 +228,7 @@ class TestLauncher {
   size_t parallel_jobs_;
 
   // Worker pool used to launch processes in parallel.
-  scoped_ptr<SequencedWorkerPoolOwner> worker_pool_owner_;
+  std::unique_ptr<SequencedWorkerPoolOwner> worker_pool_owner_;
 
   DISALLOW_COPY_AND_ASSIGN(TestLauncher);
 };