Remove UnusedParam.h

Source/core/css/resolver/FilterOperationResolver.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 2004-2005 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2006, 2007 Nicholas Shanks (webkit@nickshanks.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
  * Copyright (C) 2007, 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (c) 2011, Code Aurora Forum. All rights reserved.
  * Copyright (C) Research In Motion Limited 2011. All rights reserved.
@@ skipping 187 matching lines @@
             return false;
         parameterList.append(parameter.release());
     }
 
     // Make sure we sort the parameters before passing them down to the CustomFilterOperation.
     parameterList.sortParametersByName();
 
     return true;
 }
 
-static PassRefPtr<CustomFilterOperation> createCustomFilterOperationWithAtRuleReferenceSyntax(CSSFilterValue* filterValue)
+static PassRefPtr<CustomFilterOperation> createCustomFilterOperationWithAtRuleReferenceSyntax(CSSFilterValue*)
 {
     // FIXME: Implement style resolution for the custom filter at-rule reference syntax.
-    UNUSED_PARAM(filterValue);
     return 0;
 }
 
 static PassRefPtr<CustomFilterProgram> createCustomFilterProgram(CSSShaderValue* vertexShader, CSSShaderValue* fragmentShader,
     CustomFilterProgramType programType, const CustomFilterProgramMixSettings& mixSettings, CustomFilterMeshType meshType,
     StyleResolverState& state)
 {
     ResourceFetcher* fetcher = state.document().fetcher();
     KURL vertexShaderURL = vertexShader ? vertexShader->completeURL(fetcher) : KURL();
     KURL fragmentShaderURL = fragmentShader ? fragmentShader->completeURL(fetcher) : KURL();
@@ skipping 271 matching lines @@
             ASSERT_NOT_REACHED();
             break;
         }
     }
 
     outOperations = operations;
     return true;
 }
 
 } // namespace WebCore