Remove unused URLRegistry

sky/engine/core/html/URLRegistry.h

Index: sky/engine/core/html/URLRegistry.h
diff --git a/sky/engine/core/html/URLRegistry.h b/sky/engine/core/html/URLRegistry.h
deleted file mode 100644
index caa9b32c02e3b081a2da8aa738a13a629307cc42..0000000000000000000000000000000000000000
--- a/sky/engine/core/html/URLRegistry.h
+++ /dev/null
@@ -1,60 +0,0 @@
-/*
- * Copyright (C) 2013 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
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef URLRegistry_h
-#define URLRegistry_h
-
-#include "wtf/text/WTFString.h"
-
-namespace blink {
-
-class KURL;
-class URLRegistry;
-
-class URLRegistrable {
-public:
-    virtual ~URLRegistrable() { }
-    virtual URLRegistry& registry() const = 0;
-};
-
-class URLRegistry {
-    WTF_MAKE_FAST_ALLOCATED;
-public:
-    virtual ~URLRegistry() { }
-    virtual void unregisterURL(const KURL&) = 0;
-
-    // These are optional APIs
-    virtual URLRegistrable* lookup(const String&) { ASSERT_NOT_REACHED(); return 0; }
-    virtual bool contains(const String&) { ASSERT_NOT_REACHED(); return false; }
-};
-
-} // namespace blink
-
-#endif // URLRegistry_h