Convert ui::MenuModel to use gfx::Image instead of ImageSkia.

chrome/browser/ui/gtk/menu_gtk.h

Index: chrome/browser/ui/gtk/menu_gtk.h
diff --git a/chrome/browser/ui/gtk/menu_gtk.h b/chrome/browser/ui/gtk/menu_gtk.h
index 120be8eaf7b3665c1623b86fdebdf9050d7920bd..cfd73f96b3b00dfead601044891e94db82c9aa81 100644
--- a/chrome/browser/ui/gtk/menu_gtk.h
+++ b/chrome/browser/ui/gtk/menu_gtk.h
@@ -15,7 +15,9 @@
 #include "ui/base/gtk/gtk_signal_registrar.h"
 #include "ui/gfx/point.h"
 
-class SkBitmap;
+namespace gfx {
+class Image;
+}
 
 namespace ui {
 class ButtonMenuItemModel;
@@ -64,7 +66,7 @@ class MenuGtk {
   // is the new menu item.
   GtkWidget* AppendMenuItemWithLabel(int command_id, const std::string& label);
   GtkWidget* AppendMenuItemWithIcon(int command_id, const std::string& label,
-                                    const SkBitmap& icon);
+                                    const gfx::Image& icon);
   GtkWidget* AppendCheckMenuItemWithLabel(int command_id,
                                           const std::string& label);
   GtkWidget* AppendSeparator();
@@ -125,7 +127,7 @@ class MenuGtk {
  private:
   // Builds a GtkImageMenuItem.
   GtkWidget* BuildMenuItemWithImage(const std::string& label,
-                                    const SkBitmap& icon);
+                                    const gfx::Image& icon);
 
   GtkWidget* BuildMenuItemWithImage(const std::string& label,
                                     GtkWidget* image);