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

Source/platform/weborigin/SchemeRegistry.cpp

 /*
  * Copyright (C) 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 247 matching lines @@
 }
 
 String SchemeRegistry::listOfCORSEnabledURLSchemes()
 {
     StringBuilder builder;
     const URLSchemesMap& corsEnabledSchemes = CORSEnabledSchemes();
 
     bool addSeparator = false;
     for (URLSchemesMap::const_iterator it = corsEnabledSchemes.begin(); it != corsEnabledSchemes.end(); ++it) {
         if (addSeparator)
-            builder.append(", ");
+            builder.appendLiteral(", ");
         else
             addSeparator = true;
 
         builder.append(*it);
     }
     return builder.toString();
 }
 
 void SchemeRegistry::registerURLSchemeAsBypassingContentSecurityPolicy(const String& scheme)
 {
     ContentSecurityPolicyBypassingSchemes().add(scheme);
 }
 
 void SchemeRegistry::removeURLSchemeRegisteredAsBypassingContentSecurityPolicy(const String& scheme)
 {
     ContentSecurityPolicyBypassingSchemes().remove(scheme);
 }
 
 bool SchemeRegistry::schemeShouldBypassContentSecurityPolicy(const String& scheme)
 {
     if (scheme.isEmpty())
         return false;
     return ContentSecurityPolicyBypassingSchemes().contains(scheme);
 }
 
 } // namespace blink