Move crypto files out of base, to a top level directory.

crypto/crypto_module_blocking_password_delegate.h

+// Copyright (c) 2011 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 CRYPTO_CRYPTO_MODULE_BLOCKING_PASSWORD_DELEGATE_H_
+#define CRYPTO_CRYPTO_MODULE_BLOCKING_PASSWORD_DELEGATE_H_
+#pragma once
+
+#include <string>
+
+namespace crypto {
+
+// PK11_SetPasswordFunc is a global setting.  An implementation of
+// CryptoModuleBlockingPasswordDelegate should be passed as the user data
+// argument (|wincx|) to relevant NSS functions, which the global password
+// handler will call to do the actual work.
+class CryptoModuleBlockingPasswordDelegate {
+ public:
+  virtual ~CryptoModuleBlockingPasswordDelegate() {}
+
+  // Requests a password to unlock |slot_name|. The interface is
+  // synchronous because NSS cannot issue an asynchronous
+  // request. |retry| is true if this is a request for the retry
+  // and we previously returned the wrong password.
+  // The implementation should set |*cancelled| to true if the user cancelled
+  // instead of entering a password, otherwise it should return the password the
+  // user entered.
+  virtual std::string RequestPassword(const std::string& slot_name, bool retry,
+                                      bool* cancelled) = 0;
+};
+
+}  // namespace crypto
+
+#endif  // CRYPTO_CRYPTO_MODULE_BLOCKING_PASSWORD_DELEGATE_H_