Switch "const StringPiece&" to just "StringPiece" in QUIC code. No functional change. Not flag prot…

net/quic/crypto/p256_key_exchange_openssl.cc

 // Copyright (c) 2013 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.
 
 #include "net/quic/crypto/p256_key_exchange.h"
 
 #include <openssl/ec.h>
 #include <openssl/ecdh.h>
 #include <openssl/evp.h>
 
@@ skipping 59 matching lines @@
   }
   return string(reinterpret_cast<char*>(private_key.get()), key_len);
 }
 
 KeyExchange* P256KeyExchange::NewKeyPair(QuicRandom* /*rand*/) const {
   // TODO(agl): avoid the serialisation/deserialisation in this function.
   const string private_value = NewPrivateKey();
   return P256KeyExchange::New(private_value);
 }
 
-bool P256KeyExchange::CalculateSharedKey(const StringPiece& peer_public_value,
+bool P256KeyExchange::CalculateSharedKey(StringPiece peer_public_value,
                                          string* out_result) const {
   if (peer_public_value.size() != kUncompressedP256PointBytes) {
     DVLOG(1) << "Peer public value is invalid";
     return false;
   }
 
   crypto::ScopedEC_POINT point(
       EC_POINT_new(EC_KEY_get0_group(private_key_.get())));
   if (!point ||
       !EC_POINT_oct2point(/* also test if point is on curve */
@@ skipping 19 matching lines @@
 StringPiece P256KeyExchange::public_value() const {
   return StringPiece(reinterpret_cast<const char*>(public_key_),
                      sizeof(public_key_));
 }
 
 QuicTag P256KeyExchange::tag() const {
   return kP256;
 }
 
 }  // namespace net