Re-write many calls to WrapUnique() with MakeUnique()

cc/test/test_layer_tree_host_base.cc

Index: cc/test/test_layer_tree_host_base.cc
diff --git a/cc/test/test_layer_tree_host_base.cc b/cc/test/test_layer_tree_host_base.cc
index 35c6fbb7599b6391a30364c801a07cb4d31ee06d..92b288890687c117abf783d9d3da2cfaf3f0235c 100644
--- a/cc/test/test_layer_tree_host_base.cc
+++ b/cc/test/test_layer_tree_host_base.cc
@@ -47,9 +47,9 @@ std::unique_ptr<FakeLayerTreeHostImpl> TestLayerTreeHostBase::CreateHostImpl(
     SharedBitmapManager* shared_bitmap_manager,
     TaskGraphRunner* task_graph_runner,
     gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager) {
-  return base::WrapUnique(new FakeLayerTreeHostImpl(
+  return base::MakeUnique<FakeLayerTreeHostImpl>(
       settings, task_runner_provider, shared_bitmap_manager, task_graph_runner,
-      gpu_memory_buffer_manager));
+      gpu_memory_buffer_manager);
 }
 
 std::unique_ptr<TaskGraphRunner>