Gtk3 ui: Add libgtk3ui as a separate build component

chrome/browser/ui/libgtk2ui/gtk2_ui.h

Index: chrome/browser/ui/libgtk2ui/gtk2_ui.h
diff --git a/chrome/browser/ui/libgtk2ui/gtk2_ui.h b/chrome/browser/ui/libgtk2ui/gtk2_ui.h
deleted file mode 100644
index e883e658594795a1dd8a390ef7624b9160c9a5fb..0000000000000000000000000000000000000000
--- a/chrome/browser/ui/libgtk2ui/gtk2_ui.h
+++ /dev/null
@@ -1,217 +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_LIBGTK2UI_GTK2_UI_H_
-#define CHROME_BROWSER_UI_LIBGTK2UI_GTK2_UI_H_
-
-#include <map>
-#include <memory>
-#include <vector>
-
-#include "base/compiler_specific.h"
-#include "base/macros.h"
-#include "base/observer_list.h"
-#include "chrome/browser/ui/libgtk2ui/gtk2_signal.h"
-#include "chrome/browser/ui/libgtk2ui/libgtk2ui_export.h"
-#include "ui/gfx/color_utils.h"
-#include "ui/views/linux_ui/linux_ui.h"
-#include "ui/views/window/frame_buttons.h"
-
-typedef struct _GtkStyle GtkStyle;
-typedef struct _GtkWidget GtkWidget;
-
-class SkBitmap;
-
-namespace libgtk2ui {
-class Gtk2KeyBindingsHandler;
-class GConfListener;
-
-// Interface to GTK2 desktop features.
-//
-class Gtk2UI : public views::LinuxUI {
- public:
-  Gtk2UI();
-  ~Gtk2UI() override;
-
-  typedef base::Callback<ui::NativeTheme*(aura::Window* window)>
-      NativeThemeGetter;
-
-  // Setters used by GConfListener:
-  void SetWindowButtonOrdering(
-      const std::vector<views::FrameButton>& leading_buttons,
-      const std::vector<views::FrameButton>& trailing_buttons);
-  void SetNonClientMiddleClickAction(NonClientMiddleClickAction action);
-
-  // Called when gtk style changes
-  void ResetStyle();
-
-  // ui::LinuxInputMethodContextFactory:
-  std::unique_ptr<ui::LinuxInputMethodContext> CreateInputMethodContext(
-      ui::LinuxInputMethodContextDelegate* delegate,
-      bool is_simple) const override;
-
-  // gfx::LinuxFontDelegate:
-  gfx::FontRenderParams GetDefaultFontRenderParams() const override;
-  void GetDefaultFontDescription(
-      std::string* family_out,
-      int* size_pixels_out,
-      int* style_out,
-      gfx::Font::Weight* weight_out,
-      gfx::FontRenderParams* params_out) const override;
-
-  // ui::ShellDialogLinux:
-  ui::SelectFileDialog* CreateSelectFileDialog(
-      ui::SelectFileDialog::Listener* listener,
-      ui::SelectFilePolicy* policy) const override;
-
-  // ui::LinuxUI:
-  void Initialize() override;
-  bool GetTint(int id, color_utils::HSL* tint) const override;
-  bool GetColor(int id, SkColor* color) const override;
-  SkColor GetFocusRingColor() const override;
-  SkColor GetThumbActiveColor() const override;
-  SkColor GetThumbInactiveColor() const override;
-  SkColor GetTrackColor() const override;
-  SkColor GetActiveSelectionBgColor() const override;
-  SkColor GetActiveSelectionFgColor() const override;
-  SkColor GetInactiveSelectionBgColor() const override;
-  SkColor GetInactiveSelectionFgColor() const override;
-  double GetCursorBlinkInterval() const override;
-  ui::NativeTheme* GetNativeTheme(aura::Window* window) const override;
-  void SetNativeThemeOverride(const NativeThemeGetter& callback) override;
-  bool GetDefaultUsesSystemTheme() const override;
-  void SetDownloadCount(int count) const override;
-  void SetProgressFraction(float percentage) const override;
-  bool IsStatusIconSupported() const override;
-  std::unique_ptr<views::StatusIconLinux> CreateLinuxStatusIcon(
-      const gfx::ImageSkia& image,
-      const base::string16& tool_tip) const override;
-  gfx::Image GetIconForContentType(const std::string& content_type,
-                                   int size) const override;
-  std::unique_ptr<views::Border> CreateNativeBorder(
-      views::LabelButton* owning_button,
-      std::unique_ptr<views::LabelButtonBorder> border) override;
-  void AddWindowButtonOrderObserver(
-      views::WindowButtonOrderObserver* observer) override;
-  void RemoveWindowButtonOrderObserver(
-      views::WindowButtonOrderObserver* observer) override;
-  bool UnityIsRunning() override;
-  NonClientMiddleClickAction GetNonClientMiddleClickAction() override;
-  void NotifyWindowManagerStartupComplete() override;
-
-  // ui::TextEditKeybindingDelegate:
-  bool MatchEvent(const ui::Event& event,
-                  std::vector<ui::TextEditCommandAuraLinux>* commands) override;
-
-  // ui::Views::LinuxUI:
-  void UpdateDeviceScaleFactor(float device_scale_factor) override;
-  float GetDeviceScaleFactor() const override;
-
- private:
-  typedef std::map<int, SkColor> ColorMap;
-  typedef std::map<int, color_utils::HSL> TintMap;
-
-  // This method returns the colors webkit will use for the scrollbars. When no
-  // colors are specified by the GTK+ theme, this function averages of the
-  // thumb part and of the track colors.
-  void SetScrollbarColors();
-
-  // Extracts colors and tints from the GTK theme, both for the
-  // ThemeService interface and the colors we send to webkit.
-  void LoadGtkValues();
-
-  // Initialize the Xcursor theme and size with the GTK theme and size.
-  void LoadCursorTheme();
-
-  // Reads in explicit theme frame colors from the ChromeGtkFrame style class
-  // or generates them per our fallback algorithm.
-  void BuildFrameColors();
-
-  // Gets a tint which depends on the default for |id| as well as |color|.
-  color_utils::HSL ColorToTint(int id, SkColor color);
-
-  // Returns the tint for buttons that contrasts with the normal window
-  // background color.
-  void GetNormalButtonTintHSL(color_utils::HSL* tint) const;
-
-  // Returns a tint that's the color of the current normal text in an entry.
-  void GetNormalEntryForegroundHSL(color_utils::HSL* tint) const;
-
-  // Returns a tint that's the color of the current highlighted text in an
-  // entry.
-  void GetSelectedEntryForegroundHSL(color_utils::HSL* tint) const;
-
-  // Gets a color for the background of the prominent button.
-  SkColor GetProminentButtonBgColor(int gtk_state) const;
-
-  // Updates |default_font_*|.
-  void UpdateDefaultFont();
-
-  // Colors calculated by LoadGtkValues() that are given to the
-  // caller while |use_gtk_| is true.
-  ColorMap colors_;
-
-  // Colors used to tint certain icons.
-  color_utils::HSL button_tint_;
-  color_utils::HSL entry_tint_;
-  color_utils::HSL selected_entry_tint_;
-
-  // Colors that we pass to WebKit. These are generated each time the theme
-  // changes.
-  SkColor focus_ring_color_;
-  SkColor thumb_active_color_;
-  SkColor thumb_inactive_color_;
-  SkColor track_color_;
-  SkColor active_selection_bg_color_;
-  SkColor active_selection_fg_color_;
-  SkColor inactive_selection_bg_color_;
-  SkColor inactive_selection_fg_color_;
-
-  // Details about the default UI font.
-  std::string default_font_family_;
-  int default_font_size_pixels_;
-  int default_font_style_;  // Bitfield of gfx::Font::Style values.
-  gfx::Font::Weight default_font_weight_;
-  gfx::FontRenderParams default_font_render_params_;
-
-#if defined(USE_GCONF)
-  // Currently, the only source of window button configuration. This will
-  // change if we ever have to support XFCE's configuration system or KDE's.
-  std::unique_ptr<GConfListener> gconf_listener_;
-#endif  // defined(USE_GCONF)
-
-  // If either of these vectors are non-empty, they represent the current
-  // window button configuration.
-  std::vector<views::FrameButton> leading_buttons_;
-  std::vector<views::FrameButton> trailing_buttons_;
-
-  std::unique_ptr<Gtk2KeyBindingsHandler> key_bindings_handler_;
-
-  // Objects to notify when the window frame button order changes.
-  base::ObserverList<views::WindowButtonOrderObserver> observer_list_;
-
-  // Whether we should lower the window on a middle click to the non client
-  // area.
-  NonClientMiddleClickAction middle_click_action_;
-
-  // Used to override the native theme for a window. If no override is provided
-  // or the callback returns NULL, Gtk2UI will default to a NativeThemeGtk2
-  // instance.
-  NativeThemeGetter native_theme_overrider_;
-
-  float device_scale_factor_;
-
-  DISALLOW_COPY_AND_ASSIGN(Gtk2UI);
-};
-
-}  // namespace libgtk2ui
-
-// Access point to the GTK2 desktop system. This should be the only symbol that
-// is exported in the library; everything else should be used through the
-// interface, because eventually this .so will be loaded through dlopen at
-// runtime so our main binary can conditionally load GTK2 or GTK3 or EFL or
-// QT or whatever.
-LIBGTK2UI_EXPORT views::LinuxUI* BuildGtk2UI();
-
-#endif  // CHROME_BROWSER_UI_LIBGTK2UI_GTK2_UI_H_