Use StringBuilder::appendLiteral() / StringBuilder::append(char) when possible

Source/modules/websockets/WebSocketHandshake.cpp

 /*
  * Copyright (C) 2011 Google Inc.  All rights reserved.
  * Copyright (C) Research In Motion Limited 2011. 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.
@@ skipping 156 matching lines @@
 }
 
 String WebSocketHandshake::clientOrigin() const
 {
     return m_document->securityOrigin()->toString();
 }
 
 String WebSocketHandshake::clientLocation() const
 {
     StringBuilder builder;
-    builder.append(m_secure ? "wss" : "ws");
-    builder.append("://");
+    if (m_secure)
+        builder.appendLiteral("wss");
+    else
+        builder.appendLiteral("ws");
+    builder.appendLiteral("://");
     builder.append(hostName(m_url, m_secure));
     builder.append(resourceName(m_url));
     return builder.toString();
 }
 
 CString WebSocketHandshake::clientHandshakeMessage() const
 {
     ASSERT(m_document);
 
     // Keep the following consistent with clientHandshakeRequest().
     StringBuilder builder;
 
-    builder.append("GET ");
+    builder.appendLiteral("GET ");
     builder.append(resourceName(m_url));
-    builder.append(" HTTP/1.1\r\n");
+    builder.appendLiteral(" HTTP/1.1\r\n");
 
     Vector<String> fields;
     fields.append("Upgrade: websocket");
     fields.append("Connection: Upgrade");
     fields.append("Host: " + hostName(m_url, m_secure));
     fields.append("Origin: " + clientOrigin());
     if (!m_clientProtocol.isEmpty())
         fields.append("Sec-WebSocket-Protocol: " + m_clientProtocol);
 
     // Add no-cache headers to avoid compatibility issue.
@@ skipping 10 matching lines @@
         fields.append("Sec-WebSocket-Extensions: " + extensionValue);
 
     fields.append("User-Agent: " + m_document->userAgent(m_document->url()));
 
     // Fields in the handshake are sent by the client in a random order; the
     // order is not meaningful. Thus, it's ok to send the order we constructed
     // the fields.
 
     for (size_t i = 0; i < fields.size(); i++) {
         builder.append(fields[i]);
-        builder.append("\r\n");
+        builder.appendLiteral("\r\n");
     }
 
-    builder.append("\r\n");
+    builder.appendLiteral("\r\n");
 
     return builder.toString().utf8();
 }
 
 PassRefPtr<WebSocketHandshakeRequest> WebSocketHandshake::clientHandshakeRequest() const
 {
     ASSERT(m_document);
 
     // Keep the following consistent with clientHandshakeMessage().
     // FIXME: do we need to store m_secWebSocketKey1, m_secWebSocketKey2 and
@@ skipping 306 matching lines @@
     }
     return true;
 }
 
 void WebSocketHandshake::trace(Visitor* visitor)
 {
     visitor->trace(m_document);
 }
 
 } // namespace blink