Move FormDataList::setEntry to DOMFormData.

Source/core/html/DOMFormData.cpp

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 147 matching lines @@
 
 bool DOMFormData::has(const String& name)
 {
     if (m_opaque)
         return false;
     return hasEntry(name);
 }
 
 void DOMFormData::set(const String& name, const String& value)
 {
-    setData(name, value);
+    setEntry(Item(encodeAndNormalize(name), encodeAndNormalize(value)));
 }
 
 void DOMFormData::set(const String& name, Blob* blob, const String& filename)
 {
-    setBlob(name, blob, filename);
+    setEntry(Item(encodeAndNormalize(name), blob, filename));
+}
+
+void DOMFormData::setEntry(const Item& item)
+{
+    const CString keyData = item.key();
+    bool found = false;
+    size_t i = 0;
+    while (i < m_items.size()) {
+        if (m_items[i].key() != keyData) {
+            ++i;
+        } else if (found) {
+            m_items.remove(i);
+        } else {
+            found = true;
+            m_items[i] = item;
+            ++i;
+        }
+    }
+    if (!found)
+        m_items.append(item);
+    return;
 }
 
 PairIterable<String, FormDataEntryValue>::IterationSource* DOMFormData::startIteration(ScriptState*, ExceptionState&)
 {
     if (m_opaque)
         return new DOMFormDataIterationSource(new DOMFormData(nullptr));
 
     return new DOMFormDataIterationSource(this);
 }
 
 } // namespace blink