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

cc/test/test_hooks.cc

Index: cc/test/test_hooks.cc
diff --git a/cc/test/test_hooks.cc b/cc/test/test_hooks.cc
index 5c913acff01ff9a20c27ee99a2a9171871a60e57..a6b8300205761aa3b29fff958e273211fe73e398 100644
--- a/cc/test/test_hooks.cc
+++ b/cc/test/test_hooks.cc
@@ -19,8 +19,8 @@ DrawResult TestHooks::PrepareToDrawOnThread(
 
 void TestHooks::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) {
   host_impl->LayerTreeHostImpl::CreateResourceAndTileTaskWorkerPool(
       tile_task_worker_pool, resource_pool);
 }