[webcrypto] Change HMAC key generation length from bytes to bits.

public/platform/WebCryptoAlgorithmParams.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 113 matching lines @@
     explicit WebCryptoHmacImportParams(const WebCryptoAlgorithm& hash)
         : WebCryptoAlgorithmParamsWithHash(hash)
     {
     }
 
     virtual WebCryptoAlgorithmParamsType type() const { return WebCryptoAlgorithmParamsTypeHmacImportParams; }
 };
 
 class WebCryptoHmacKeyGenParams : public WebCryptoAlgorithmParamsWithHash {
 public:
-    WebCryptoHmacKeyGenParams(const WebCryptoAlgorithm& hash, bool hasLengthBytes, unsigned lengthBytes)
+    WebCryptoHmacKeyGenParams(const WebCryptoAlgorithm& hash, bool hasLengthBits, unsigned lengthBits)
         : WebCryptoAlgorithmParamsWithHash(hash)
-        , m_hasLengthBytes(hasLengthBytes)
-        , m_optionalLengthBytes(lengthBytes)
+        , m_hasLengthBits(hasLengthBits)
+        , m_optionalLengthBits(lengthBits)
     {
-        BLINK_ASSERT(hasLengthBytes || !lengthBytes);
+        BLINK_ASSERT(hasLengthBits || !lengthBits);
     }
 
     virtual WebCryptoAlgorithmParamsType type() const { return WebCryptoAlgorithmParamsTypeHmacKeyGenParams; }
 
-    bool hasLengthBytes() const { return m_hasLengthBytes; }
+    bool hasLengthBits() const { return m_hasLengthBits; }
 
-    unsigned optionalLengthBytes() const { return m_optionalLengthBytes; }
+    unsigned optionalLengthBits() const { return m_optionalLengthBits; }
 
 private:
-    const bool m_hasLengthBytes;
-    const unsigned m_optionalLengthBytes;
+    const bool m_hasLengthBits;
+    const unsigned m_optionalLengthBits;
 };
 
 class WebCryptoRsaKeyGenParams : public WebCryptoAlgorithmParams {
 public:
     WebCryptoRsaKeyGenParams(unsigned modulusLengthBits, const unsigned char* publicExponent, unsigned publicExponentSize)
         : m_modulusLengthBits(modulusLengthBits)
         , m_publicExponent(publicExponent, publicExponentSize)
     {
     }
 
@@ skipping 80 matching lines @@
     const WebVector<unsigned char>& optionalLabel() const { return m_optionalLabel; }
 
 private:
     const bool m_hasLabel;
     const WebVector<unsigned char> m_optionalLabel;
 };
 
 } // namespace blink
 
 #endif