Changed cols and rows to unsigned long for HTMLTextAreaElement

Source/core/html/HTMLTextAreaElement.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2010 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.
@@ skipping 19 matching lines @@
 namespace blink {
 
 class BeforeTextInsertedEvent;
 class ExceptionState;
 
 class CORE_EXPORT HTMLTextAreaElement final : public HTMLTextFormControlElement {
     DEFINE_WRAPPERTYPEINFO();
 public:
     static PassRefPtrWillBeRawPtr<HTMLTextAreaElement> create(Document&, HTMLFormElement*);
 
-    int cols() const { return m_cols; }
-    int rows() const { return m_rows; }
+    unsigned cols() const { return m_cols; }
+    unsigned rows() const { return m_rows; }
 
     bool shouldWrapText() const { return m_wrap != NoWrap; }
 
     virtual String value() const override;
     void setValue(const String&, TextFieldEventBehavior = DispatchNoEvent);
     String defaultValue() const;
     void setDefaultValue(const String&);
     int textLength() const { return value().length(); }
     int maxLength() const;
     int minLength() const;
     void setMaxLength(int, ExceptionState&);
     void setMinLength(int, ExceptionState&);
 
     String suggestedValue() const;
     void setSuggestedValue(const String&);
 
     // For ValidityState
     virtual String validationMessage() const override;
     virtual bool valueMissing() const override;
     virtual bool tooLong() const override;
     virtual bool tooShort() const override;
     bool isValidValue(const String&) const;
 
-    void setCols(int);
-    void setRows(int);
+    void setCols(unsigned);
+    void setRows(unsigned);
 
 private:
     HTMLTextAreaElement(Document&, HTMLFormElement*);
 
     enum WrapMethod { NoWrap, SoftWrap, HardWrap };
     enum SetValueCommonOption {
         NotSetSelection,
         SetSeletion
     };
 
@@ skipping 52 matching lines @@
 
     virtual bool matchesReadOnlyPseudoClass() const override;
     virtual bool matchesReadWritePseudoClass() const override;
     virtual void copyNonAttributePropertiesFromElement(const Element&) override final;
 
     // If the String* argument is 0, apply this->value().
     bool valueMissing(const String*) const;
     bool tooLong(const String*, NeedsToCheckDirtyFlag) const;
     bool tooShort(const String*, NeedsToCheckDirtyFlag) const;
 
-    int m_rows;
-    int m_cols;
+    unsigned m_rows;
+    unsigned m_cols;
     WrapMethod m_wrap;
     mutable String m_value;
     mutable bool m_isDirty;
     bool m_valueIsUpToDate;
     String m_suggestedValue;
 };
 
 } // namespace blink
 
 #endif // HTMLTextAreaElement_h