Initial gtk3 support

chrome/browser/ui/libgtk2ui/gtk2_ui.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_LIBGTK2UI_GTK2_UI_H_
 #define CHROME_BROWSER_UI_LIBGTK2UI_GTK2_UI_H_
 
 #include <map>
 #include <vector>
 
@@ skipping 39 matching lines @@
       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);
 
   // Draws the GTK button border for state |gtk_state| onto a bitmap.
   SkBitmap DrawGtkButtonBorder(int gtk_state,
-                               bool focused,
-                               bool call_to_action,
                                int width,
                                int height) const;
 
   // ui::LinuxInputMethodContextFactory:
   scoped_ptr<ui::LinuxInputMethodContext> CreateInputMethodContext(
       ui::LinuxInputMethodContextDelegate* delegate,
       bool is_simple) const override;
 
   // gfx::LinuxFontDelegate:
   gfx::FontRenderParams GetDefaultFontRenderParams() const override;
@@ skipping 204 matching lines @@
 }  // 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_