Invert the dialog background color for Windows high contrast.

ui/native_theme/native_theme_win.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_win.h"
 
 #include <windows.h>
 #include <uxtheme.h>
 #include <vsstyle.h>
 #include <vssym32.h>
@@ skipping 10 matching lines @@
 #include "skia/ext/platform_canvas.h"
 #include "skia/ext/skia_utils_win.h"
 #include "third_party/skia/include/core/SkCanvas.h"
 #include "third_party/skia/include/core/SkColorPriv.h"
 #include "third_party/skia/include/core/SkShader.h"
 #include "ui/base/win/dpi.h"
 #include "ui/gfx/color_utils.h"
 #include "ui/gfx/gdi_util.h"
 #include "ui/gfx/rect.h"
 #include "ui/gfx/rect_conversions.h"
+#include "ui/gfx/sys_color_change_listener.h"
 #include "ui/native_theme/common_theme.h"
 
 // This was removed from Winvers.h but is still used.
 #if !defined(COLOR_MENUHIGHLIGHT)
 #define COLOR_MENUHIGHLIGHT 29
 #endif
 
 namespace {
 
 // TODO: Obtain the correct colors using GetSysColor.
@@ skipping 451 matching lines @@
   if (CommonThemeGetSystemColor(color_id, &color))
     return color;
 
   switch (color_id) {
     // Windows
     case kColorId_WindowBackground:
       return system_colors_[COLOR_WINDOW];
 
     // Dialogs
     case kColorId_DialogBackground:
+      if (gfx::IsInvertedColorScheme())
+        return color_utils::InvertColor(kDialogBackgroundColor);
       return kDialogBackgroundColor;
 
     // FocusableBorder
     case kColorId_FocusedBorderColor:
       return kFocusedBorderColor;
     case kColorId_UnfocusedBorderColor:
       return kUnfocusedBorderColor;
 
     // Button
     case kColorId_ButtonBackgroundColor:
@@ skipping 1578 matching lines @@
     handle = open_theme_(NULL, L"Spin");
     break;
   default:
     NOTREACHED();
   }
   theme_handles_[theme_name] = handle;
   return handle;
 }
 
 }  // namespace ui