Remove String::adopt(Vector<UChar>)

Source/wtf/text/StringBuffer.h

 /*
  * Copyright (C) 2008, 2010 Apple 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 22 matching lines @@
 #include "wtf/text/StringImpl.h"
 #include "wtf/unicode/Unicode.h"
 #include <limits>
 
 namespace WTF {
 
 template <typename CharType>
 class StringBuffer {
     WTF_MAKE_NONCOPYABLE(StringBuffer);
 public:
+    StringBuffer() { }
+
     explicit StringBuffer(unsigned length)
     {
         RELEASE_ASSERT(length <= std::numeric_limits<unsigned>::max() / sizeof(CharType));
         CharType* characters;
         m_data = StringImpl::createUninitialized(length, characters);
     }
 
     ~StringBuffer()
     {
     }
 
     void shrink(unsigned newLength)
     {
         if (m_data->length() == newLength)
             return;
         m_data->truncateAssumingIsolated(newLength);
     }
 
     void resize(unsigned newLength)
     {
+        RELEASE_ASSERT(newLength <= std::numeric_limits<unsigned>::max() / sizeof(CharType));
+        if (!m_data) {
+            CharType* characters;
+            m_data = StringImpl::createUninitialized(newLength, characters);
+            return;
+        }
         if (newLength > m_data->length()) {
-            RELEASE_ASSERT(newLength <= std::numeric_limits<unsigned>::max() / sizeof(UChar));
             CharType* characters;
             m_data = StringImpl::reallocate(m_data.release(), newLength, characters);
             return;
         }
         shrink(newLength);
     }
 
     unsigned length() const { return m_data->length(); }
     CharType* characters() { return length() ? const_cast<CharType*>(m_data->getCharacters<CharType>()) : 0; }
 
     CharType& operator[](unsigned i) { ASSERT_WITH_SECURITY_IMPLICATION(i < length()); return characters()[i]; }
 
     PassRefPtr<StringImpl> release() { return m_data.release(); }
 
 private:
     RefPtr<StringImpl> m_data;
 };
 
 } // namespace WTF
 
 using WTF::StringBuffer;
 
 #endif // StringBuffer_h