Remove SSLPrivateKey metadata hooks.

net/ssl/ssl_private_key.h

Index: net/ssl/ssl_private_key.h
diff --git a/net/ssl/ssl_private_key.h b/net/ssl/ssl_private_key.h
index 145cd5037c6555577c723c6f2bbba19590d5ba23..0c877a5feb61224ded4cb044b209d74a7b95c409 100644
--- a/net/ssl/ssl_private_key.h
+++ b/net/ssl/ssl_private_key.h
@@ -23,19 +23,6 @@ class SSLPrivateKey : public base::RefCountedThreadSafe<SSLPrivateKey> {
  public:
   using SignCallback = base::Callback<void(Error, const std::vector<uint8_t>&)>;
 
-  enum class Type {
-    RSA,
-    ECDSA_P256,
-    ECDSA_P384,
-    ECDSA_P521,
-  };
-
-  // Returns true if |type| is an ECDSA key type.
-  static bool IsECDSAType(Type type) {
-    return type == Type::ECDSA_P256 || type == Type::ECDSA_P384 ||
-           type == Type::ECDSA_P521;
-  }
-
   enum class Hash {
     MD5_SHA1,
     SHA1,
@@ -46,21 +33,9 @@ class SSLPrivateKey : public base::RefCountedThreadSafe<SSLPrivateKey> {
 
   SSLPrivateKey() {}
 
-  // Returns whether the key is an RSA key or an ECDSA key. Although the signing
-  // interface is type-agnositic and type tags in interfaces are discouraged,
-  // TLS has key-specific logic in selecting which hashes to sign. Exposing the
-  // key type avoids replicating BoringSSL's TLS-specific logic in SSLPrivateKey
-  // implementations and complicating the interface between Chromium and
-  // BoringSSL.
-  virtual Type GetType() = 0;
-
   // Returns the digests that are supported by the key in decreasing preference.
   virtual std::vector<SSLPrivateKey::Hash> GetDigestPreferences() = 0;
 
-  // Returns the maximum size of a signature, in bytes. For an RSA key, this
-  // must be the size of the modulus.
-  virtual size_t GetMaxSignatureLengthInBytes() = 0;
-
   // Asynchronously signs an |input| which was computed with the hash |hash|. On
   // completion, it calls |callback| with the signature or an error code if the
   // operation failed. For an RSA key, the signature is a PKCS#1 signature. The