wrench_menu: use NativeTheme colors under aura

ui/native_theme/native_theme_gtk.cc

 // 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.
 
 #include "ui/native_theme/native_theme_gtk.h"
 
 #include <gtk/gtk.h>
 
 #include "base/basictypes.h"
 #include "base/logging.h"
 #include "ui/gfx/skia_utils_gtk.h"
 
 namespace {
 
 const SkColor kInvalidColorIdColor = SkColorSetRGB(255, 0, 128);
 
 // Theme colors returned by GetSystemColor().
 
 // FocusableBorder:
 const SkColor kFocusedBorderColor = SkColorSetRGB(0x4D, 0x90, 0xFE);
 const SkColor kUnfocusedBorderColor = SkColorSetRGB(0xD9, 0xD9, 0xD9);
 
+// MenuItem
+const SkColor kHoverMenuItemBackgroundColor = SkColorSetRGB(204, 204, 204);
+
 // TextButton:
 const SkColor kTextButtonBackgroundColor = SkColorSetRGB(0xde, 0xde, 0xde);
 const SkColor kTextButtonEnabledColor = SkColorSetRGB(6, 45, 117);
 const SkColor kTextButtonDisabledColor = SkColorSetRGB(161, 161, 146);
 const SkColor kTextButtonHighlightColor = SkColorSetARGB(200, 255, 255, 255);
 const SkColor kTextButtonHoverColor = kTextButtonEnabledColor;
 
 }  // namespace
 
 namespace ui {
@@ skipping 19 matching lines @@
       // chromium-os bug 23461). Need to figure out the right thing and do it.
       return gfx::GdkColorToSkColor(
                      gtk_widget_get_default_style()->bg[GTK_STATE_NORMAL]);
 
     // FocusableBorder:
     case kColorId_FocusedBorderColor:
       return kFocusedBorderColor;
     case kColorId_UnfocusedBorderColor:
       return kUnfocusedBorderColor;
 
+    // MenuItem
+    case kColorId_HoverMenuItemBackgroundColor:
+      return kHoverMenuItemBackgroundColor;
+
     // TextButton:
     case kColorId_TextButtonBackgroundColor:
       return kTextButtonBackgroundColor;
     case kColorId_TextButtonEnabledColor:
       return kTextButtonEnabledColor;
     case kColorId_TextButtonDisabledColor:
       return kTextButtonDisabledColor;
     case kColorId_TextButtonHighlightColor:
       return kTextButtonHighlightColor;
     case kColorId_TextButtonHoverColor:
       return kTextButtonHoverColor;
 
     default:
       NOTREACHED() << "Invalid color_id: " << color_id;
       break;
   }
   return kInvalidColorIdColor;
 }
 
 NativeThemeGtk::NativeThemeGtk() {
 }
 
 NativeThemeGtk::~NativeThemeGtk() {
 }
 
 }  // namespace ui