Add QuicStringPiece which is actually StringPiece.

net/quic/core/crypto/crypto_server_config_protobuf.h

 // 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.
 
 #ifndef NET_QUIC_CORE_CRYPTO_CRYPTO_SERVER_CONFIG_PROTOBUF_H_
 #define NET_QUIC_CORE_CRYPTO_CRYPTO_SERVER_CONFIG_PROTOBUF_H_
 
 #include <cstddef>
 #include <cstdint>
 
 #include <memory>
 #include <string>
 #include <vector>
 
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
-#include "base/strings/string_piece.h"
 #include "net/quic/core/crypto/crypto_protocol.h"
 #include "net/quic/platform/api/quic_export.h"
+#include "net/quic/platform/api/quic_string_piece.h"
 
 namespace net {
 
 // QuicServerConfigProtobuf contains QUIC server config block and the private
 // keys needed to prove ownership.
 // TODO(rch): sync with server more rationally.
 class QUIC_EXPORT_PRIVATE QuicServerConfigProtobuf {
  public:
   // PrivateKey contains a QUIC tag of a key exchange algorithm and a
   // serialised private key for that algorithm. The format of the serialised
@@ skipping 15 matching lines @@
 
   size_t key_size() const { return keys_.size(); }
 
   const PrivateKey& key(size_t i) const {
     DCHECK_GT(keys_.size(), i);
     return *keys_[i].get();
   }
 
   std::string config() const { return config_; }
 
-  void set_config(base::StringPiece config) { config.CopyToString(&config_); }
+  void set_config(QuicStringPiece config) { config.CopyToString(&config_); }
 
   QuicServerConfigProtobuf::PrivateKey* add_key() {
     keys_.push_back(base::MakeUnique<PrivateKey>());
     return keys_.back().get();
   }
 
   void clear_key() { keys_.clear(); }
 
   bool has_primary_time() const { return primary_time_ > 0; }
 
   int64_t primary_time() const { return primary_time_; }
 
   void set_primary_time(int64_t primary_time) { primary_time_ = primary_time; }
 
   bool has_priority() const { return priority_ > 0; }
 
   uint64_t priority() const { return priority_; }
 
   void set_priority(int64_t priority) { priority_ = priority; }
 
   bool has_source_address_token_secret_override() const {
     return !source_address_token_secret_override_.empty();
   }
 
   std::string source_address_token_secret_override() const {
     return source_address_token_secret_override_;
   }
 
   void set_source_address_token_secret_override(
-      base::StringPiece source_address_token_secret_override) {
+      QuicStringPiece source_address_token_secret_override) {
     source_address_token_secret_override.CopyToString(
         &source_address_token_secret_override_);
   }
 
  private:
   std::vector<std::unique_ptr<PrivateKey>> keys_;
 
   // config_ is a serialised config in QUIC wire format.
   std::string config_;
 
@@ skipping 10 matching lines @@
   // tokens when talking to clients that select this server config.
   // It can be of any length as it is fed into a KDF before use.
   std::string source_address_token_secret_override_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicServerConfigProtobuf);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_CORE_CRYPTO_CRYPTO_SERVER_CONFIG_PROTOBUF_H_