Delete the GTK+ port of Chrome.

ui/gfx/native_widget_types.h

 // Copyright (c) 2012 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 UI_GFX_NATIVE_WIDGET_TYPES_H_
 #define UI_GFX_NATIVE_WIDGET_TYPES_H_
 
 #include "build/build_config.h"
 
 #if defined(OS_ANDROID)
@@ skipping 80 matching lines @@
 class NSImage;
 struct NSView;
 class NSWindow;
 class NSTextField;
 #endif  // __OBJC__
 #elif defined(OS_POSIX)
 typedef struct _PangoFontDescription PangoFontDescription;
 typedef struct _cairo cairo_t;
 #endif
 
-#if defined(TOOLKIT_GTK)
-typedef struct _GdkCursor GdkCursor;
-typedef union _GdkEvent GdkEvent;
-typedef struct _GdkPixbuf GdkPixbuf;
-typedef struct _GdkRegion GdkRegion;
-typedef struct _GtkWidget GtkWidget;
-typedef struct _GtkWindow GtkWindow;
-#elif defined(OS_ANDROID)
+#if defined(OS_ANDROID)
 struct ANativeWindow;
 namespace ui {
 class WindowAndroid;
 class ViewAndroid;
 }
 #endif
 class SkBitmap;
 
 namespace gfx {
 
 #if defined(USE_AURA)
 typedef ui::Cursor NativeCursor;
 typedef aura::Window* NativeView;
 typedef aura::Window* NativeWindow;
 typedef SkRegion* NativeRegion;
 typedef ui::Event* NativeEvent;
 #elif defined(OS_IOS)
 typedef void* NativeCursor;
 typedef UIView* NativeView;
 typedef UIWindow* NativeWindow;
 typedef UIEvent* NativeEvent;
 #elif defined(OS_MACOSX)
 typedef NSCursor* NativeCursor;
 typedef NSView* NativeView;
 typedef NSWindow* NativeWindow;
 typedef NSEvent* NativeEvent;
-#elif defined(TOOLKIT_GTK)
-typedef GdkCursor* NativeCursor;
-typedef GtkWidget* NativeView;
-typedef GtkWindow* NativeWindow;
-typedef GdkRegion* NativeRegion;
-typedef GdkEvent* NativeEvent;
 #elif defined(OS_ANDROID)
 typedef void* NativeCursor;
 typedef ui::ViewAndroid* NativeView;
 typedef ui::WindowAndroid* NativeWindow;
 typedef void* NativeRegion;
 typedef jobject NativeEvent;
 #endif
 
 #if defined(OS_WIN)
 typedef HFONT NativeFont;
 typedef HWND NativeEditView;
 typedef HDC NativeDrawingContext;
 typedef IAccessible* NativeViewAccessible;
 #elif defined(OS_IOS)
 typedef UIFont* NativeFont;
 typedef UITextField* NativeEditView;
 typedef CGContext* NativeDrawingContext;
 #elif defined(OS_MACOSX)
 typedef NSFont* NativeFont;
 typedef NSTextField* NativeEditView;
 typedef CGContext* NativeDrawingContext;
 typedef void* NativeViewAccessible;
-#elif defined(TOOLKIT_GTK)
-typedef PangoFontDescription* NativeFont;
-typedef GtkWidget* NativeEditView;
-typedef cairo_t* NativeDrawingContext;
-typedef void* NativeViewAccessible;
 #elif defined(USE_CAIRO)
 typedef PangoFontDescription* NativeFont;
 typedef void* NativeEditView;
 typedef cairo_t* NativeDrawingContext;
 typedef void* NativeViewAccessible;
 #else
 typedef void* NativeFont;
 typedef void* NativeEditView;
 typedef void* NativeDrawingContext;
 typedef void* NativeViewAccessible;
 #endif
 
 // A constant value to indicate that gfx::NativeCursor refers to no cursor.
 #if defined(USE_AURA)
 const int kNullCursor = 0;
 #else
 const gfx::NativeCursor kNullCursor = static_cast<gfx::NativeCursor>(NULL);
 #endif
 
 #if defined(OS_IOS)
 typedef UIImage NativeImageType;
 #elif defined(OS_MACOSX)
 typedef NSImage NativeImageType;
-#elif defined(TOOLKIT_GTK)
-typedef GdkPixbuf NativeImageType;
 #else
 typedef SkBitmap NativeImageType;
 #endif
 typedef NativeImageType* NativeImage;
 
 // Note: for test_shell we're packing a pointer into the NativeViewId. So, if
 // you make it a type which is smaller than a pointer, you have to fix
 // test_shell.
 //
 // See comment at the top of the file for usage.
@@ skipping 72 matching lines @@
 #elif defined(USE_OZONE)
 typedef intptr_t AcceleratedWidget;
 const AcceleratedWidget kNullAcceleratedWidget = 0;
 #else
 #error unknown platform
 #endif
 
 }  // namespace gfx
 
 #endif  // UI_GFX_NATIVE_WIDGET_TYPES_H_