Split //ui/display and create //ui/display/manager.

ui/display/manager/display_layout_builder.h

-// 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_DISPLAY_MANAGER_DISPLAY_LAYOUT_BUILDER_H_
-#define UI_DISPLAY_MANAGER_DISPLAY_LAYOUT_BUILDER_H_
-
-#include <memory>
-
-#include "base/macros.h"
-#include "ui/display/display_export.h"
-#include "ui/display/manager/display_layout.h"
-
-namespace display {
-
-class DisplayLayout;
-
-// A utility class to create a DisplayLayout instance.
-class DISPLAY_EXPORT DisplayLayoutBuilder final {
- public:
-  // Creates a builder that uses a copy of the |layout| as a source.
-  explicit DisplayLayoutBuilder(const DisplayLayout& layout);
-
-  // Creates a builder with the primary display id.
-  explicit DisplayLayoutBuilder(int64_t primary_id);
-
-  ~DisplayLayoutBuilder();
-
-  DisplayLayoutBuilder& SetDefaultUnified(bool default_unified);
-
-  DisplayLayoutBuilder& SetMirrored(bool mirrored);
-
-  DisplayLayoutBuilder& ClearPlacements();
-
-  // Adds a display placement.
-  DisplayLayoutBuilder& AddDisplayPlacement(int64_t display_id,
-                                            int64_t parent_id,
-                                            DisplayPlacement::Position position,
-                                            int offset);
-
-  // Adds a display placement.
-  DisplayLayoutBuilder& AddDisplayPlacement(
-      const DisplayPlacement& placement);
-
-  // Sets the display placement for the secondary display.
-  DisplayLayoutBuilder& SetSecondaryPlacement(
-      int64_t secondary_id,
-      DisplayPlacement::Position position,
-      int offset);
-
-  // Returns the DisplayLayout. After this call, the builder becomes invalid.
-  std::unique_ptr<DisplayLayout> Build();
-
- private:
-  std::unique_ptr<DisplayLayout> layout_;
-
-  DISALLOW_COPY_AND_ASSIGN(DisplayLayoutBuilder);
-};
-
-}  // namespace display
-
-#endif  // UI_DISPLAY_MANAGER_DISPLAY_LAYOUT_BUILDER_H_