Refactor the interface for generating keys.

content/child/webcrypto/nss/aes_key_nss.h

Index: content/child/webcrypto/nss/aes_key_nss.h
diff --git a/content/child/webcrypto/nss/aes_key_nss.h b/content/child/webcrypto/nss/aes_key_nss.h
index e1e2ed3f064b15a3a1ed749507481ae54227c082..cf61268c609adb7284e692095a5b0b404d241e46 100644
--- a/content/child/webcrypto/nss/aes_key_nss.h
+++ b/content/child/webcrypto/nss/aes_key_nss.h
@@ -36,13 +36,11 @@ class AesAlgorithm : public AlgorithmImplementation {
   AesAlgorithm(CK_MECHANISM_TYPE import_mechanism,
                const std::string& jwk_suffix);
 
-  virtual Status VerifyKeyUsagesBeforeGenerateKey(
-      blink::WebCryptoKeyUsageMask usage_mask) const OVERRIDE;
-
-  virtual Status GenerateSecretKey(const blink::WebCryptoAlgorithm& algorithm,
-                                   bool extractable,
-                                   blink::WebCryptoKeyUsageMask usage_mask,
-                                   blink::WebCryptoKey* key) const OVERRIDE;
+  virtual Status GenerateKey(const blink::WebCryptoAlgorithm& algorithm,
+                             bool extractable,
+                             blink::WebCryptoKeyUsageMask usage_mask,
+                             blink::WebCryptoKey*,
+                             blink::WebCryptoKey* key) const OVERRIDE;
 
   virtual Status VerifyKeyUsagesBeforeImportKey(
       blink::WebCryptoKeyFormat format,