Removed unused native code related to wifi bootstrapping.

chrome/browser/local_discovery/privetv3_crypto_provider.h

-// Copyright 2014 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 CHROME_BROWSER_LOCAL_DISCOVERY_PRIVETV3_CRYPTO_PROVIDER_H_
-#define CHROME_BROWSER_LOCAL_DISCOVERY_PRIVETV3_CRYPTO_PROVIDER_H_
-
-#include <string>
-#include <vector>
-
-#include "base/memory/scoped_ptr.h"
-
-namespace local_discovery {
-
-class PrivetV3CryptoProvider {
- public:
-  enum HandshakeState {
-    // Handshake still in progress. Call |GetNextStep| to send next handshake
-    // step.
-    IN_PROGRESS,
-    // Handshake in progress, waiting for response. Call |SetStepResponse| to
-    // set the step response.
-    AWAITING_RESPONSE,
-    // Handshake in progress, need to wait for user verification to
-    // continue. Call |GetVerificationCode| to get the verification code and
-    // |AcceptVerificationCode| to signify the code is accepted.
-    AWAITING_USER_VERIFICATION,
-    // Handshake complete. Call |EncryptData| to encrypt the data.
-    HANDSHAKE_COMPLETE,
-    // Handshake error.
-    HANDSHAKE_ERROR
-  };
-
-  virtual ~PrivetV3CryptoProvider() {}
-
-  static scoped_ptr<PrivetV3CryptoProvider> Create(
-      const std::vector<std::string>& available_auth_methods);
-
-  // Return the current state of the crypto provider.
-  virtual HandshakeState GetState() = 0;
-
-  // Return the authentication method used.
-  virtual std::string GetAuthMethod() = 0;
-
-  // Get the next handshake command. |step| is the step number to send,
-  // |package| is a base64-encoded package to send with the step. Return
-  // |true| if a package is generated or |false| in case of an error.
-  virtual HandshakeState GetNextStep(int* step, std::string* package) = 0;
-
-  // Input the response to the handshake command. |step| is the received step
-  // number, |state| is the received state string, |package| is the received
-  // base64-encoded package. Return the current handshake state.
-  virtual HandshakeState SetStepResponse(int step,
-                                         const std::string& state,
-                                         const std::string& package) = 0;
-
-  // Get the verification code to be displayed on the screen.
-  virtual std::string GetVerificationCode() = 0;
-
-  // Signal that the verification code is accepted. Returns the current
-  // handshake state.
-  virtual HandshakeState AcceptVerificationCode() = 0;
-
-  // Encrypt a string using the session key.
-  virtual bool EncryptData(const std::string& input, std::string* output) = 0;
-};
-
-}  // namespace local_discovery
-
-#endif  // CHROME_BROWSER_LOCAL_DISCOVERY_PRIVETV3_CRYPTO_PROVIDER_H_