Revert of Added common layout framework for system menu rows.

ui/views/test/test_layout_manager.h

Index: ui/views/test/test_layout_manager.h
diff --git a/ui/views/test/test_layout_manager.h b/ui/views/test/test_layout_manager.h
deleted file mode 100644
index b50f01902b765dea8429677db9bf859dca759e2e..0000000000000000000000000000000000000000
--- a/ui/views/test/test_layout_manager.h
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright 2016 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_VIEWS_TEST_TEST_LAYOUT_MANAGER_H_
-#define UI_VIEWS_TEST_TEST_LAYOUT_MANAGER_H_
-
-#include "ui/gfx/geometry/size.h"
-#include "ui/views/layout/layout_manager.h"
-
-namespace views {
-namespace test {
-
-// A stub layout manager that returns a specific preferred size and height for
-// width.
-class TestLayoutManager : public LayoutManager {
- public:
-  TestLayoutManager();
-  ~TestLayoutManager() override;
-
-  void set_preferred_size(const gfx::Size& size) { preferred_size_ = size; }
-
-  void set_preferred_height_for_width(int height) {
-    preferred_height_for_width_ = height;
-  }
-
-  // LayoutManager:
-  void Layout(View* host) override;
-  gfx::Size GetPreferredSize(const View* host) const override;
-  int GetPreferredHeightForWidth(const View* host, int width) const override;
-
- private:
-  // The return value of GetPreferredSize();
-  gfx::Size preferred_size_;
-
-  // The return value for GetPreferredHeightForWidth().
-  int preferred_height_for_width_ = 0;
-
-  DISALLOW_COPY_AND_ASSIGN(TestLayoutManager);
-};
-
-}  // namespace test
-}  // namespace views
-
-#endif  // UI_VIEWS_TEST_TEST_LAYOUT_MANAGER_H_