Add QuicStringPiece which is actually StringPiece.

net/quic/core/crypto/strike_register_client.h

 // Copyright 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_STRIKE_REGISTER_CLIENT_H_
 #define NET_QUIC_CORE_CRYPTO_STRIKE_REGISTER_CLIENT_H_
 
 #include <string>
 
 #include "base/macros.h"
-#include "base/strings/string_piece.h"
 #include "net/quic/core/crypto/strike_register.h"
 #include "net/quic/core/quic_time.h"
 #include "net/quic/platform/api/quic_export.h"
+#include "net/quic/platform/api/quic_string_piece.h"
 
 namespace net {
 
 // Interface implemented by clients that talk to strike registers
 // implemented as local or remote services.
 class QUIC_EXPORT_PRIVATE StrikeRegisterClient {
  public:
   // Single use callback that will be invoked once the validation
   // operation is complete.
   class QUIC_EXPORT_PRIVATE ResultCallback {
@@ skipping 10 matching lines @@
                          InsertStatus nonce_error) = 0;
 
    private:
     DISALLOW_COPY_AND_ASSIGN(ResultCallback);
   };
 
   StrikeRegisterClient() {}
   virtual ~StrikeRegisterClient() {}
 
   // Returns true iff the strike register knows about the given orbit.
-  virtual bool IsKnownOrbit(base::StringPiece orbit) const = 0;
+  virtual bool IsKnownOrbit(QuicStringPiece orbit) const = 0;
   // Validate a nonce for freshness and uniqueness.
   // Will invoke cb->Run(ValidateResponse::nonce_is_valid_and_unique(),
   //                     ValidateResponse::nonce_error())
   // once the asynchronous operation is complete.
-  virtual void VerifyNonceIsValidAndUnique(base::StringPiece nonce,
+  virtual void VerifyNonceIsValidAndUnique(QuicStringPiece nonce,
                                            QuicWallTime now,
                                            ResultCallback* cb) = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(StrikeRegisterClient);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_CORE_CRYPTO_STRIKE_REGISTER_CLIENT_H_