cc: Make ScopedResource constructor public, use MakeUnique to construct

cc/raster/raster_buffer_provider_perftest.cc

Index: cc/raster/raster_buffer_provider_perftest.cc
diff --git a/cc/raster/raster_buffer_provider_perftest.cc b/cc/raster/raster_buffer_provider_perftest.cc
index dd6c68e3839fcccb9da6eda4f0564b5bc644032e..d4dd4e4a6b4da3f1354607f06e9fe4f16c7d8710 100644
--- a/cc/raster/raster_buffer_provider_perftest.cc
+++ b/cc/raster/raster_buffer_provider_perftest.cc
@@ -242,8 +242,8 @@ class RasterBufferProviderPerfTestBase {
     const gfx::Size size(1, 1);
 
     for (unsigned i = 0; i < num_raster_tasks; ++i) {
-      std::unique_ptr<ScopedResource> resource(
-          ScopedResource::Create(resource_provider_.get()));
+      auto resource =
+          base::MakeUnique<ScopedResource>(resource_provider_.get());
       resource->Allocate(size, ResourceProvider::TEXTURE_HINT_IMMUTABLE,
                          RGBA_8888, gfx::ColorSpace());