Delete TestDisplaySnapshot and update tests.

ui/display/chromeos/test/test_display_snapshot.h

-// 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.
-
-#ifndef UI_DISPLAY_CHROMEOS_TEST_TEST_DISPLAY_SNAPSHOT_H_
-#define UI_DISPLAY_CHROMEOS_TEST_TEST_DISPLAY_SNAPSHOT_H_
-
-#include <stdint.h>
-
-#include "base/macros.h"
-#include "ui/display/display_export.h"
-#include "ui/display/types/display_snapshot.h"
-
-namespace ui {
-
-class DISPLAY_EXPORT TestDisplaySnapshot : public DisplaySnapshot {
- public:
-  TestDisplaySnapshot();
-  TestDisplaySnapshot(int64_t display_id,
-                      const gfx::Point& origin,
-                      const gfx::Size& physical_size,
-                      DisplayConnectionType type,
-                      bool is_aspect_preserving_scaling,
-                      int64_t product_id,
-                      bool has_color_correction_matrix,
-                      std::vector<std::unique_ptr<const DisplayMode>> modes,
-                      const DisplayMode* current_mode,
-                      const DisplayMode* native_mode);
-  ~TestDisplaySnapshot() override;
-
-  void set_type(DisplayConnectionType type) { type_ = type; }
-  void set_modes(std::vector<std::unique_ptr<const DisplayMode>> modes) {
-    modes_ = std::move(modes);
-  }
-  void set_native_mode(const ui::DisplayMode* mode) { native_mode_ = mode; }
-  void set_is_aspect_preserving_scaling(bool state) {
-    is_aspect_preserving_scaling_ = state;
-  }
-  void set_display_id(int64_t id) { display_id_ = id; }
-
-  // DisplaySnapshot overrides:
-  std::string ToString() const override;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(TestDisplaySnapshot);
-};
-
-}  // namespace ui
-
-#endif  // UI_DISPLAY_CHROMEOS_TEST_TEST_DISPLAY_SNAPSHOT_H_