Move ImageWindowDelegate to ui/aura_extra

content/browser/web_contents/aura/image_window_delegate.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 CONTENT_BROWSER_WEB_CONTENTS_AURA_IMAGE_WINDOW_DELEGATE_H_
-#define CONTENT_BROWSER_WEB_CONTENTS_AURA_IMAGE_WINDOW_DELEGATE_H_
-
-#include "content/common/content_export.h"
-#include "ui/aura/window_delegate.h"
-#include "ui/gfx/geometry/size.h"
-#include "ui/gfx/image/image.h"
-
-namespace content {
-
-// An ImageWindowDelegate paints an image for a Window. The delegate destroys
-// itself when the Window is destroyed. The delegate does not consume any event.
-class CONTENT_EXPORT ImageWindowDelegate : public aura::WindowDelegate {
- public:
-  ImageWindowDelegate();
-
-  void SetImage(const gfx::Image& image);
-  bool has_image() const { return !image_.IsEmpty(); }
-
- protected:
-  ~ImageWindowDelegate() override;
-
-  // Overridden from aura::WindowDelegate:
-  gfx::Size GetMinimumSize() const override;
-  gfx::Size GetMaximumSize() const override;
-  void OnBoundsChanged(const gfx::Rect& old_bounds,
-                       const gfx::Rect& new_bounds) override;
-  gfx::NativeCursor GetCursor(const gfx::Point& point) override;
-  int GetNonClientComponent(const gfx::Point& point) const override;
-  bool ShouldDescendIntoChildForEventHandling(
-      aura::Window* child,
-      const gfx::Point& location) override;
-  bool CanFocus() override;
-  void OnCaptureLost() override;
-  void OnPaint(gfx::Canvas* canvas) override;
-  void OnDeviceScaleFactorChanged(float device_scale_factor) override;
-  void OnWindowDestroying(aura::Window* window) override;
-  void OnWindowDestroyed(aura::Window* window) override;
-  void OnWindowTargetVisibilityChanged(bool visible) override;
-  bool HasHitTestMask() const override;
-  void GetHitTestMask(gfx::Path* mask) const override;
-
- protected:
-  gfx::Image image_;
-  gfx::Size window_size_;
-
-  // Keeps track of whether the window size matches the image size or not. If
-  // the image size is smaller than the window size, then the delegate paints a
-  // white background for the missing regions.
-  bool size_mismatch_;
-
-  DISALLOW_COPY_AND_ASSIGN(ImageWindowDelegate);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_WEB_CONTENTS_AURA_IMAGE_WINDOW_DELEGATE_H_