It is time.

ui/views/cull_set.cc

Index: ui/views/cull_set.cc
diff --git a/ui/views/cull_set.cc b/ui/views/cull_set.cc
deleted file mode 100644
index 65566e0b362fe71bcf26eed1bd869ab4aa474170..0000000000000000000000000000000000000000
--- a/ui/views/cull_set.cc
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "ui/views/cull_set.h"
-
-namespace views {
-
-CullSet::CullSet() {
-}
-
-CullSet::~CullSet() {
-}
-
-CullSet::CullSet(scoped_ptr<base::hash_set<intptr_t> > cull_set)
-    : cull_set_(cull_set.Pass()) {
-}
-
-bool CullSet::ShouldPaint(const View* view) const {
-  if (cull_set_)
-    return (cull_set_->count(reinterpret_cast<intptr_t>(view)) > 0);
-
-  return true;
-}
-
-}  // namespace views