Delete the GTK+ port of Chrome.

chrome/browser/ui/gtk/hover_controller_gtk.h

-// Copyright (c) 2011 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_GTK_HOVER_CONTROLLER_GTK_H_
-#define CHROME_BROWSER_UI_GTK_HOVER_CONTROLLER_GTK_H_
-
-#include <gtk/gtk.h>
-
-#include "base/compiler_specific.h"
-#include "ui/base/gtk/gtk_signal.h"
-#include "ui/base/gtk/gtk_signal_registrar.h"
-#include "ui/gfx/animation/animation_delegate.h"
-#include "ui/gfx/animation/slide_animation.h"
-#include "ui/gfx/animation/throb_animation.h"
-
-// This class handles the "throbbing" of a GtkChromeButton. The visual effect
-// of throbbing is created by painting partially transparent hover effects. It
-// only works in non-gtk theme mode. This class mainly exists to glue an
-// AnimationDelegate (C++ class) to a GtkChromeButton* (GTK/c object).
-class HoverControllerGtk : public gfx::AnimationDelegate {
- public:
-  virtual ~HoverControllerGtk();
-
-  GtkWidget* button() { return button_; }
-
-  // Throb for |cycles| cycles. This will override the current remaining
-  // number of cycles. Note that a "cycle" is (somewhat unintuitively) half of
-  // a complete throb revolution.
-  void StartThrobbing(int cycles);
-
-  // Get the HoverControllerGtk for a given GtkChromeButton*. It is an error
-  // to call this on a widget that is not a GtkChromeButton*.
-  static HoverControllerGtk* GetHoverControllerGtk(GtkWidget* button);
-
-  // Creates a GtkChromeButton and adds a HoverControllerGtk for it.
-  static GtkWidget* CreateChromeButton();
-
-  // Stop throbbing and delete |this|.
-  void Destroy();
-
- private:
-  explicit HoverControllerGtk(GtkWidget* button);
-
-  // Overridden from gfx::AnimationDelegate.
-  virtual void AnimationProgressed(const gfx::Animation* animation) OVERRIDE;
-  virtual void AnimationEnded(const gfx::Animation* animation) OVERRIDE;
-  virtual void AnimationCanceled(const gfx::Animation* animation) OVERRIDE;
-
-  CHROMEGTK_CALLBACK_1(HoverControllerGtk, gboolean, OnEnter,
-                       GdkEventCrossing*);
-  CHROMEGTK_CALLBACK_1(HoverControllerGtk, gboolean, OnLeave,
-                       GdkEventCrossing*);
-  CHROMEGTK_CALLBACK_1(HoverControllerGtk, void, OnHierarchyChanged,
-                       GtkWidget*);
-  CHROMEGTK_CALLBACK_0(HoverControllerGtk, void, OnDestroy);
-
-  gfx::ThrobAnimation throb_animation_;
-  gfx::SlideAnimation hover_animation_;
-  GtkWidget* button_;
-
-  ui::GtkSignalRegistrar signals_;
-
-  DISALLOW_COPY_AND_ASSIGN(HoverControllerGtk);
-};
-
-#endif  // CHROME_BROWSER_UI_GTK_HOVER_CONTROLLER_GTK_H_