Web MIDI: add assign() and equals() to WebMIDIPermissionRequest

Source/web/WebNode.cpp

 /*
  * Copyright (C) 2009 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 52 matching lines @@
     m_private.reset();
 }
 
 void WebNode::assign(const WebNode& other)
 {
     m_private = other.m_private;
 }
 
 bool WebNode::equals(const WebNode& n) const
 {
-    return (m_private.get() == n.m_private.get());
+    return m_private.get() == n.m_private.get();
 }
 
 bool WebNode::lessThan(const WebNode& n) const
 {
-    return (m_private.get() < n.m_private.get());
+    return m_private.get() < n.m_private.get();
 }
 
 WebNode::NodeType WebNode::nodeType() const
 {
     return static_cast<NodeType>(m_private->nodeType());
 }
 
 WebNode WebNode::parentNode() const
 {
     return WebNode(const_cast<ContainerNode*>(m_private->parentNode()));
@@ skipping 172 matching lines @@
     m_private = node;
     return *this;
 }
 
 WebNode::operator PassRefPtr<Node>() const
 {
     return m_private.get();
 }
 
 } // namespace WebKit