Make SysColorChangeListener Windows-only instead of having an empty shell.

ui/native_theme/common_theme.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/common_theme.h"
 
 #include "base/logging.h"
 #include "third_party/skia/include/core/SkCanvas.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/gfx/canvas.h"
 #include "ui/gfx/color_utils.h"
 #include "ui/gfx/geometry/rect.h"
 #include "ui/gfx/image/image_skia.h"
 #include "ui/gfx/skia_util.h"
-#include "ui/gfx/sys_color_change_listener.h"
 #include "ui/resources/grit/ui_resources.h"
 
 namespace {
 
 // Theme colors returned by GetSystemColor().
 
 // MenuItem:
 const SkColor kMenuBackgroundColor = SK_ColorWHITE;
 const SkColor kMenuHighlightBackgroundColor = SkColorSetRGB(0x42, 0x81, 0xF4);
 const SkColor kMenuInvertedSchemeHighlightBackgroundColor =
@@ skipping 91 matching lines @@
     case NativeTheme::kColorId_ThrobberWaitingColor:
       *color = kThrobberWaitingColor;
       break;
     case NativeTheme::kColorId_ThrobberLightColor:
       *color = kThrobberLightColor;
       break;
     default:
       return false;
   }
 
-  if (gfx::IsInvertedColorScheme()) {
+  if (color_utils::IsInvertedColorScheme()) {
     switch (color_id) {
       case NativeTheme::kColorId_FocusedMenuItemBackgroundColor:
         *color = kMenuInvertedSchemeHighlightBackgroundColor;
         break;
       default:
         *color = color_utils::InvertColor(*color);
     }
   }
   return true;
 }
@@ skipping 80 matching lines @@
 // static
 scoped_ptr<gfx::Canvas> CommonThemeCreateCanvas(SkCanvas* sk_canvas) {
   // TODO(pkotwicz): Do something better and don't infer device
   // scale factor from canvas scale.
   SkMatrix m = sk_canvas->getTotalMatrix();
   float device_scale = static_cast<float>(SkScalarAbs(m.getScaleX()));
   return make_scoped_ptr(new gfx::Canvas(sk_canvas, device_scale));
 }
 
 }  // namespace ui