Remove implementation of Panels on OSes other than ChromeOS.

chrome/browser/ui/panels/native_panel_stack_window.h

-// 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_PANELS_NATIVE_PANEL_STACK_WINDOW_H_
-#define CHROME_BROWSER_UI_PANELS_NATIVE_PANEL_STACK_WINDOW_H_
-
-#include <memory>
-
-#include "base/strings/string16.h"
-#include "ui/gfx/image/image.h"
-
-class Panel;
-namespace gfx {
-class Rect;
-class Vector2d;
-}
-
-class NativePanelStackWindowDelegate {
- public:
-  // Returns the title representing the whole stack.
-  virtual base::string16 GetTitle() const = 0;
-
-  // Returns the icon denoting the whole stack.
-  virtual gfx::Image GetIcon() const = 0;
-
-  // Called when the batch bounds update is completed, i.e. animation ends.
-  virtual void PanelBoundsBatchUpdateCompleted() = 0;
-};
-
-// An interface that encapsulates the platform-specific behaviors that are
-// needed to support multiple panels that are stacked together. A native
-// window might be created to enclose all the panels in the stack. The lifetime
-// of the class that implements this interface is managed by itself.
-class NativePanelStackWindow {
- public:
-  // Creates and returns a NativePanelStackWindow instance. Calling Close() will
-  // destruct the instance.
-  static NativePanelStackWindow* Create(
-      NativePanelStackWindowDelegate* delegate);
-
-  virtual ~NativePanelStackWindow() {}
-
-  virtual bool IsMinimized() const = 0;
-
- protected:
-  friend class StackedPanelCollection;
-
-  // Called when the stack is to be closed. This will cause this instance to be
-  // self destructed after the native window closes.
-  virtual void Close() = 0;
-
-  // Makes |panel| be enclosed by this stack window.
-
-  // Adds |panel| to the set of panels grouped and shown inside this stack
-  // Window. It does not take ownership of |panel|.
-  virtual void AddPanel(Panel* panel) = 0;
-
-  // Removes |panel| from the set of panels grouped and shown inside this stack
-  // window.
-  virtual void RemovePanel(Panel* panel) = 0;
-
-  // Merges those panels grouped and shown inside |another| stack window into
-  // the set of panels grouped and shown inside this stack window.
-  virtual void MergeWith(NativePanelStackWindow* another) = 0;
-
-  // Returns true if no panel is being shown inside this stack window.
-  virtual bool IsEmpty() const = 0;
-
-  // Returns true if |panel| is being enclosed by this stack window.
-  virtual bool HasPanel(Panel* panel) const = 0;
-
-  // Moves all panels instantly by |delta|. All the moves should be done
-  // simulatenously.
-  virtual void MovePanelsBy(const gfx::Vector2d& delta) = 0;
-
-  // Changes the bounds of a set of panels synchronously.
-  virtual void BeginBatchUpdatePanelBounds(bool animate) = 0;
-  virtual void AddPanelBoundsForBatchUpdate(Panel* panel,
-                                            const gfx::Rect& new_bounds) = 0;
-  virtual void EndBatchUpdatePanelBounds() = 0;
-
-  // Returns true if some panels within this stack window are still in the
-  // process of bounds animation.
-  virtual bool IsAnimatingPanelBounds() const = 0;
-
-  // Minimizes all the panels in the stack as a whole via system.
-  virtual void Minimize() = 0;
-
-  // Draws or clears the attention via system. The system might choose to
-  // flash the taskbar icon for attention.
-  virtual void DrawSystemAttention(bool draw_attention) = 0;
-
-  // Called when the panel is activated.
-  virtual void OnPanelActivated(Panel* panel) = 0;
-};
-
-#endif  // CHROME_BROWSER_UI_PANELS_NATIVE_PANEL_STACK_WINDOW_H_