Add a move constructor and move assignment operator to KURL

Source/platform/weborigin/KURL.cpp

 /*
  * Copyright (C) 2004, 2007, 2008, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2012 Research In Motion Limited. All rights reserved.
  * Copyright (C) 2008, 2009, 2011 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
@@ skipping 237 matching lines @@
     m_protocolIsInHTTPFamily = other.m_protocolIsInHTTPFamily;
     m_parsed = other.m_parsed;
     m_string = other.m_string;
     if (other.m_innerURL)
         m_innerURL = adoptPtr(new KURL(other.m_innerURL->copy()));
     else
         m_innerURL.clear();
     return *this;
 }
 
+#if COMPILER_SUPPORTS(CXX_RVALUE_REFERENCES)
+KURL::KURL(KURL&& other)
+    : m_isValid(other.m_isValid)
+    , m_protocolIsInHTTPFamily(other.m_protocolIsInHTTPFamily)
+    , m_parsed(other.m_parsed)
+    // FIXME: Instead of explicitly casting to String&& here, we should use std::move, but that requires us to
+    // have a standard library that supports move semantics.
+    , m_string(static_cast<String&&>(other.m_string))
+    , m_innerURL(other.m_innerURL.release())
+{
+}
+
+KURL& KURL::operator=(KURL&& other)
+{
+    m_isValid = other.m_isValid;
+    m_protocolIsInHTTPFamily = other.m_protocolIsInHTTPFamily;
+    m_parsed = other.m_parsed;
+    // FIXME: Instead of explicitly casting to String&& here, we should use std::move, but that requires us to
+    // have a standard library that supports move semantics.
+    m_string = static_cast<String&&>(other.m_string);
+    m_innerURL = other.m_innerURL.release();
+    return *this;
+}
+#endif
+
 KURL KURL::copy() const
 {
     KURL result;
     result.m_isValid = m_isValid;
     result.m_protocolIsInHTTPFamily = m_protocolIsInHTTPFamily;
     result.m_parsed = m_parsed;
     result.m_string = m_string.isolatedCopy();
     if (m_innerURL)
         result.m_innerURL = adoptPtr(new KURL(m_innerURL->copy()));
     return result;
@@ skipping 614 matching lines @@
     m_string = AtomicString::fromUTF8(output.data(), output.length());
 }
 
 bool KURL::isSafeToSendToAnotherThread() const
 {
     return m_string.isSafeToSendToAnotherThread()
         && (!m_innerURL || m_innerURL->isSafeToSendToAnotherThread());
 }
 
 } // namespace WebCore