Remove implementation of Panels on OSes other than ChromeOS.

chrome/browser/ui/cocoa/panels/panel_stack_window_cocoa.h

Index: chrome/browser/ui/cocoa/panels/panel_stack_window_cocoa.h
diff --git a/chrome/browser/ui/cocoa/panels/panel_stack_window_cocoa.h b/chrome/browser/ui/cocoa/panels/panel_stack_window_cocoa.h
deleted file mode 100644
index 08b4dfba5fd8c63f7e8a38b5ce6bd9efd216f6e3..0000000000000000000000000000000000000000
--- a/chrome/browser/ui/cocoa/panels/panel_stack_window_cocoa.h
+++ /dev/null
@@ -1,94 +0,0 @@
-// Copyright (c) 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 CHROME_BROWSER_UI_COCOA_PANELS_PANEL_STACK_WINDOW_COCOA_H_
-#define CHROME_BROWSER_UI_COCOA_PANELS_PANEL_STACK_WINDOW_COCOA_H_
-
-#import <Cocoa/Cocoa.h>
-
-#include <list>
-#include <map>
-#include <memory>
-
-#include "base/mac/scoped_nsobject.h"
-#include "base/macros.h"
-#include "chrome/browser/ui/panels/native_panel_stack_window.h"
-#include "ui/gfx/geometry/rect.h"
-
-@class BatchBoundsAnimationDelegate;
-class Panel;
-class PanelStackWindowCocoa;
-
-// A native window that acts as the owner of all/partial panels in the stack,
-// in order to make these panels appear as a single window.
-class PanelStackWindowCocoa : public NativePanelStackWindow {
- public:
-  explicit PanelStackWindowCocoa(NativePanelStackWindowDelegate* delegate);
-  ~PanelStackWindowCocoa() override;
-
-  // Notified by BatchBoundsAnimationDelegate about the ending of the bounds
-  // animation.
-  void BoundsUpdateAnimationEnded();
-
- protected:
-  // Overridden from NativePanelStackWindow:
-  void Close() override;
-  void AddPanel(Panel* panel) override;
-  void RemovePanel(Panel* panel) override;
-  void MergeWith(NativePanelStackWindow* another) override;
-  bool IsEmpty() const override;
-  bool HasPanel(Panel* panel) const override;
-  void MovePanelsBy(const gfx::Vector2d& delta) override;
-  void BeginBatchUpdatePanelBounds(bool animate) override;
-  void AddPanelBoundsForBatchUpdate(Panel* panel,
-                                    const gfx::Rect& bounds) override;
-  void EndBatchUpdatePanelBounds() override;
-  bool IsAnimatingPanelBounds() const override;
-  void Minimize() override;
-  bool IsMinimized() const override;
-  void DrawSystemAttention(bool draw_attention) override;
-  void OnPanelActivated(Panel* panel) override;
-
- private:
-  typedef std::list<Panel*> Panels;
-
-  // The map value is old bounds of the panel.
-  typedef std::map<Panel*, gfx::Rect> BoundsUpdates;
-
-  // Terminates current bounds animation, if any.
-  void TerminateBoundsAnimation();
-
-  // Computes/updates the minimum bounds that could fit all panels.
-  gfx::Rect GetStackWindowBounds() const;
-  void UpdateStackWindowBounds();
-
-  // Ensures that the background window is created.
-  void EnsureWindowCreated();
-
-  // Weak pointer. Owned by PanelManager.
-  NativePanelStackWindowDelegate* delegate_;
-
-  // The underlying window.
-  base::scoped_nsobject<NSWindow> window_;
-
-  Panels panels_;
-
-  // Identifier from requestUserAttention.
-  NSInteger attention_request_id_;
-
-  // For batch bounds update.
-  bool bounds_updates_started_;
-  bool animate_bounds_updates_;
-  BoundsUpdates bounds_updates_;
-
-  // Used to animate the bounds changes at a synchronized pace.
-  // Lifetime controlled manually, needs more than just |release| to terminate.
-  NSViewAnimation* bounds_animation_;
-  base::scoped_nsobject<BatchBoundsAnimationDelegate>
-      bounds_animation_delegate_;
-
-  DISALLOW_COPY_AND_ASSIGN(PanelStackWindowCocoa);
-};
-
-#endif  // CHROME_BROWSER_UI_COCOA_PANELS_PANEL_STACK_WINDOW_COCOA_H_