SELECT element: Fix a bug that intrinsic width is too narrow in less-than-100% zoom level.

third_party/WebKit/Source/core/layout/LayoutThemeMac.mm

 /*
  * Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Google, Inc.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 736 matching lines @@
 int LayoutThemeMac::popupInternalPaddingStart(
     const ComputedStyle& style) const {
   if (style.appearance() == MenulistPart)
     return popupButtonPadding(controlSizeForFont(style))[ThemeMac::LeftMargin] *
            style.effectiveZoom();
   if (style.appearance() == MenulistButtonPart)
     return styledPopupPaddingStart * style.effectiveZoom();
   return 0;
 }
 
-int LayoutThemeMac::popupInternalPaddingEnd(const ComputedStyle& style) const {
+int LayoutThemeMac::popupInternalPaddingEnd(const HostWindow*,
+                                            const ComputedStyle& style) const {
   if (style.appearance() == MenulistPart)
     return popupButtonPadding(
                controlSizeForFont(style))[ThemeMac::RightMargin] *
            style.effectiveZoom();
   if (style.appearance() != MenulistButtonPart)
     return 0;
   float fontScale = style.fontSize() / baseFontSize;
   float arrowWidth = menuListBaseArrowWidth * fontScale;
   return static_cast<int>(
       ceilf(arrowWidth +
@@ skipping 334 matching lines @@
 }
 
 bool LayoutThemeMac::shouldUseFallbackTheme(const ComputedStyle& style) const {
   ControlPart part = style.appearance();
   if (part == CheckboxPart || part == RadioPart)
     return style.effectiveZoom() != 1;
   return false;
 }
 
 }  // namespace blink