Remove the deprecated cipher fallback.

net/http/http_network_transaction.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef NET_HTTP_HTTP_NETWORK_TRANSACTION_H_
 #define NET_HTTP_HTTP_NETWORK_TRANSACTION_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 251 matching lines @@
   void ResetStateForRestart();
 
   // Resets the members of the transaction, except |stream_|, which needs
   // to be maintained for multi-round auth.
   void ResetStateForAuthRestart();
 
   // Caches network error details from the stream if available
   // and resets the stream.
   void CacheNetErrorDetailsAndResetStream();
 
-  // Records metrics relating to SSL fallbacks.
-  void RecordSSLFallbackMetrics(int result);
-
   // Returns true if we should try to add a Proxy-Authorization header
   bool ShouldApplyProxyAuth() const;
 
   // Returns true if we should try to add an Authorization header.
   bool ShouldApplyServerAuth() const;
 
   // Handles HTTP status code 401 or 407.
   // HandleAuthChallenge() returns a network error code, or OK on success.
   // May update |pending_auth_target_| or |response_.auth_challenge|.
   int HandleAuthChallenge();
@@ skipping 115 matching lines @@
   // Communicate lifetime of transaction to the throttler, and
   // throttled state to the transaction.
   std::unique_ptr<NetworkThrottleManager::Throttle> throttle_;
 
   DISALLOW_COPY_AND_ASSIGN(HttpNetworkTransaction);
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_NETWORK_TRANSACTION_H_