It is time.

ui/aura/test/env_test_helper.h

Index: ui/aura/test/env_test_helper.h
diff --git a/ui/aura/test/env_test_helper.h b/ui/aura/test/env_test_helper.h
deleted file mode 100644
index 0c1ef31ec66ac19a6468ff7b408dda2144ec9277..0000000000000000000000000000000000000000
--- a/ui/aura/test/env_test_helper.h
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright 2013 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.
-
-#ifndef UI_AURA_TEST_ENV_TEST_HELPER_H_
-#define UI_AURA_TEST_ENV_TEST_HELPER_H_
-
-#include "ui/aura/env.h"
-#include "ui/aura/input_state_lookup.h"
-
-namespace aura {
-namespace test {
-
-class EnvTestHelper {
- public:
-  explicit EnvTestHelper(Env* env) : env_(env) {}
-  ~EnvTestHelper() {}
-
-  void SetInputStateLookup(scoped_ptr<InputStateLookup> input_state_lookup) {
-    env_->input_state_lookup_ = input_state_lookup.Pass();
-  }
-
- private:
-  Env* env_;
-
-  DISALLOW_COPY_AND_ASSIGN(EnvTestHelper);
-};
-
-}  // namespace test
-}  // namespace aura
-
-#endif  // UI_AURA_TEST_ENV_TEST_HELPER_H_