cc: Make ScopedResource constructor public, use MakeUnique to construct

cc/layers/heads_up_display_layer_impl.cc

Index: cc/layers/heads_up_display_layer_impl.cc
diff --git a/cc/layers/heads_up_display_layer_impl.cc b/cc/layers/heads_up_display_layer_impl.cc
index 681a58d3ef252acbd72a42dfda0ca07c9f191089..6aae1bd3bddca2e54ccc0114526c99d281f5443a 100644
--- a/cc/layers/heads_up_display_layer_impl.cc
+++ b/cc/layers/heads_up_display_layer_impl.cc
@@ -93,8 +93,7 @@ void HeadsUpDisplayLayerImpl::AcquireResource(
     }
   }
 
-  std::unique_ptr<ScopedResource> resource =
-      ScopedResource::Create(resource_provider);
+  auto resource = base::MakeUnique<ScopedResource>(resource_provider);
   resource->Allocate(
       internal_content_bounds_, ResourceProvider::TEXTURE_HINT_IMMUTABLE,
       resource_provider->best_texture_format(), gfx::ColorSpace());