Apply SELECT's style on calculating intrinsic width of menulist SELECTs.

third_party/WebKit/Source/core/layout/LayoutMenuList.cpp

Index: third_party/WebKit/Source/core/layout/LayoutMenuList.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutMenuList.cpp b/third_party/WebKit/Source/core/layout/LayoutMenuList.cpp
index 9b7d92eaadc11706d8ac0ddef4a270d23067ea36..23fbc0ca04998e6d7621efd43dd6426f345ad3e5 100644
--- a/third_party/WebKit/Source/core/layout/LayoutMenuList.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutMenuList.cpp
@@ -163,18 +163,14 @@ void LayoutMenuList::updateOptionsWidth() const
         String text = option->textIndentedToRespectGroupLabel();
         const ComputedStyle* itemStyle = option->computedStyle() ? option->computedStyle() : style();
         applyTextTransform(itemStyle, text, ' ');
-        TextRun textRun = constructTextRun(itemStyle->font(), text, *itemStyle);
-
-        maxOptionWidth = std::max(maxOptionWidth, computeTextWidth(textRun, *itemStyle));
+        // We apply SELECT's style, not OPTION's style because m_optionsWidth is
+        // used to determine intrinsic width of the menulist box.
+        TextRun textRun = constructTextRun(style()->font(), text, *style());
+        maxOptionWidth = std::max(maxOptionWidth, style()->font().width(textRun));
     }
     m_optionsWidth = static_cast<int>(ceilf(maxOptionWidth));
 }
 
-float LayoutMenuList::computeTextWidth(const TextRun& textRun, const ComputedStyle& computedStyle) const
-{
-    return computedStyle.font().width(textRun);
-}
-
 void LayoutMenuList::updateFromElement()
 {
     HTMLSelectElement* select = selectElement();