Remove width calculation in `Width` hint

Source/core/html/HTMLImageElement.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Google 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.
@@ skipping 623 matching lines @@
 static bool sourceSizeValue(Element& element, Document& currentDocument, float& sourceSize)
 {
     String sizes = element.fastGetAttribute(sizesAttr);
     bool exists = !sizes.isNull();
     if (exists)
         UseCounter::count(currentDocument, UseCounter::Sizes);
     sourceSize = SizesAttributeParser(MediaValuesDynamic::create(currentDocument), sizes).length();
     return exists;
 }
 
-int HTMLImageElement::widthAttributeToInt(const String& value, bool& isValid)
-{
-    // '%' is excluded here since having a width percentage based value means
-    // that the actual width depends on layout, so we cannot use it for resourceWidth.
-    // '*' is exclueded since in Blink and WebKit it means that the entire attribtue is ignored.
-    // TODO(yoav): Count these occurences and try to deprecate/remove if feasible: crbug.com/501870
-    if (!value.isEmpty() && !value.contains('%') && !value.contains('*'))
-        return value.toInt(&isValid);
-
-    isValid = false;
-    return 0;
-}
-
 FetchRequest::ResourceWidth HTMLImageElement::resourceWidth()
 {
     FetchRequest::ResourceWidth resourceWidth;
     resourceWidth.isSet = sourceSizeValue(*this, document(), resourceWidth.width);
-    if (!resourceWidth.isSet)
-        resourceWidth.width = widthAttributeToInt(fastGetAttribute(widthAttr), resourceWidth.isSet);
     return resourceWidth;
 }
 
 float HTMLImageElement::sourceSize(Element& element)
 {
     float value;
     // We don't care here if the sizes attribute exists, so we ignore the return value.
     // If it doesn't exist, we just return the default.
     sourceSizeValue(element, document(), value);
     return value;
@@ skipping 88 matching lines @@
     ensureUserAgentShadowRoot();
 }
 
 bool HTMLImageElement::isOpaque() const
 {
     Image* image = const_cast<HTMLImageElement*>(this)->imageContents();
     return image && image->currentFrameKnownToBeOpaque();
 }
 
 }