blink: Cleanup class/struct forward declarations

third_party/WebKit/Source/modules/crypto/NormalizeAlgorithm.h

 /*
  * 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
@@ skipping 25 matching lines @@
 #include "public/platform/WebCrypto.h"
 #include "public/platform/WebCryptoAlgorithm.h"
 #include "public/platform/WebString.h"
 #include "wtf/Allocator.h"
 #include "wtf/Assertions.h"
 #include "wtf/Compiler.h"
 #include "wtf/Forward.h"
 
 namespace blink {
 
-class Dictionary;
-
 struct AlgorithmError {
   STACK_ALLOCATED();
   WebCryptoErrorType errorType;
   WebString errorDetails;
 };
 
 typedef DictionaryOrString AlgorithmIdentifier;
 
 // Converts a javascript AlgorithmIdentifier to a WebCryptoAlgorithm object.
 //
 // This corresponds with "normalizing" [1] the algorithm, and then validating
 // the expected parameters for the algorithm/operation combination.
 //
 // On success returns true and sets the WebCryptoAlgorithm.
 //
 // On failure normalizeAlgorithm returns false and sets the AlgorithmError with
 // a error type and a (non-localized) debug string.
 //
 // [1] http://www.w3.org/TR/WebCryptoAPI/#algorithm-normalizing-rules
 MODULES_EXPORT WARN_UNUSED_RESULT bool normalizeAlgorithm(
     const AlgorithmIdentifier&,
     WebCryptoOperation,
     WebCryptoAlgorithm&,
     AlgorithmError*);
 
 }  // namespace blink
 
 #endif