Convert //cc from scoped_ptr to std::unique_ptr.

cc/test/layer_tree_pixel_resource_test.cc

Index: cc/test/layer_tree_pixel_resource_test.cc
diff --git a/cc/test/layer_tree_pixel_resource_test.cc b/cc/test/layer_tree_pixel_resource_test.cc
index 5d810ab24bc24ede9a61c8ba29b503e17e6ac7c5..7da328fb819712471d6a3051f9fadb8567afa427 100644
--- a/cc/test/layer_tree_pixel_resource_test.cc
+++ b/cc/test/layer_tree_pixel_resource_test.cc
@@ -107,8 +107,8 @@ void LayerTreeHostPixelResourceTest::InitializeFromTestCase(
 
 void LayerTreeHostPixelResourceTest::CreateResourceAndTileTaskWorkerPool(
     LayerTreeHostImpl* host_impl,
-    scoped_ptr<TileTaskWorkerPool>* tile_task_worker_pool,
-    scoped_ptr<ResourcePool>* resource_pool) {
+    std::unique_ptr<TileTaskWorkerPool>* tile_task_worker_pool,
+    std::unique_ptr<ResourcePool>* resource_pool) {
   base::SingleThreadTaskRunner* task_runner =
       task_runner_provider()->HasImplThread()
           ? task_runner_provider()->ImplThreadTaskRunner()