Add Length::isPercent and use it in tables.

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

 /*
  * Copyright (C) 2006, 2007, 2012 Apple Inc. All rights reserved.
  *
  * 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,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 80 matching lines @@
     float minDefaultLabelWidth = defaultWidthNumChars * font.width(constructTextRun(font, characterAsString, styleRef(), TextRun::AllowTrailingExpansion));
 
     const String label = toHTMLInputElement(node())->locale().queryString(WebLocalizedString::FileButtonNoFileSelectedLabel);
     float defaultLabelWidth = font.width(constructTextRun(font, label, styleRef(), TextRun::AllowTrailingExpansion));
     if (HTMLInputElement* button = uploadButton()) {
         if (LayoutObject* buttonLayoutObject = button->layoutObject())
             defaultLabelWidth += buttonLayoutObject->maxPreferredLogicalWidth() + afterButtonSpacing;
     }
     maxLogicalWidth = LayoutUnit(ceilf(std::max(minDefaultLabelWidth, defaultLabelWidth)));
 
-    if (!style()->width().hasPercent())
+    if (!style()->width().isPercentOrCalc())
         minLogicalWidth = maxLogicalWidth;
 }
 
 void LayoutFileUploadControl::computePreferredLogicalWidths()
 {
     ASSERT(preferredLogicalWidthsDirty());
 
     m_minPreferredLogicalWidth = LayoutUnit();
     m_maxPreferredLogicalWidth = LayoutUnit();
     const ComputedStyle& styleToUse = styleRef();
@@ skipping 42 matching lines @@
 }
 
 String LayoutFileUploadControl::fileTextValue() const
 {
     HTMLInputElement* input = toHTMLInputElement(node());
     ASSERT(input->files());
     return LayoutTheme::theme().fileListNameForWidth(input->locale(), input->files(), style()->font(), maxFilenameWidth());
 }
 
 } // namespace blink