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diff --git a/chrome/browser/importer/nss_decryptor_mac.h b/chrome/browser/importer/nss_decryptor_mac.h
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+++ b/chrome/browser/importer/nss_decryptor_mac.h
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+// Copyright (c) 2009 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_IMPORTER_NSS_DECRYPTOR_MAC_H_
+#define CHROME_BROWSER_IMPORTER_NSS_DECRYPTOR_MAC_H_
+
+#include <string>
+#include <vector>
+
+#include "base/basictypes.h"
+#include "base/file_path.h"
+#include "base/logging.h"
+
+// The following declarations of functions and types are from Firefox
+// NSS library.
+// source code:
+//   security/nss/lib/util/seccomon.h
+//   security/nss/lib/nss/nss.h
+// The license block is:
+
+/* ***** BEGIN LICENSE BLOCK *****
+* Version: MPL 1.1/GPL 2.0/LGPL 2.1
+*
+* The contents of this file are subject to the Mozilla Public License Version
+* 1.1 (the "License"); you may not use this file except in compliance with
+* the License. You may obtain a copy of the License at
+* http://www.mozilla.org/MPL/
+*
+* Software distributed under the License is distributed on an "AS IS" basis,
+* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+* for the specific language governing rights and limitations under the
+* License.
+*
+* The Original Code is the Netscape security libraries.
+*
+* The Initial Developer of the Original Code is
+* Netscape Communications Corporation.
+* Portions created by the Initial Developer are Copyright (C) 1994-2000
+* the Initial Developer. All Rights Reserved.
+*
+* Contributor(s):
+*
+* Alternatively, the contents of this file may be used under the terms of
+* either the GNU General Public License Version 2 or later (the "GPL"), or
+* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+* in which case the provisions of the GPL or the LGPL are applicable instead
+* of those above. If you wish to allow use of your version of this file only
+* under the terms of either the GPL or the LGPL, and not to allow others to
+* use your version of this file under the terms of the MPL, indicate your
+* decision by deleting the provisions above and replace them with the notice
+* and other provisions required by the GPL or the LGPL. If you do not delete
+* the provisions above, a recipient may use your version of this file under
+* the terms of any one of the MPL, the GPL or the LGPL.
+*
+* ***** END LICENSE BLOCK ***** */
+
+enum SECItemType {
+  siBuffer = 0,
+  siClearDataBuffer = 1,
+  siCipherDataBuffer = 2,
+  siDERCertBuffer = 3,
+  siEncodedCertBuffer = 4,
+  siDERNameBuffer = 5,
+  siEncodedNameBuffer = 6,
+  siAsciiNameString = 7,
+  siAsciiString = 8,
+  siDEROID = 9,
+  siUnsignedInteger = 10,
+  siUTCTime = 11,
+  siGeneralizedTime = 12
+};
+
+struct SECItem {
+  SECItemType type;
+  unsigned char *data;
+  unsigned int len;
+};
+
+enum SECStatus {
+  SECWouldBlock = -2,
+  SECFailure = -1,
+  SECSuccess = 0
+};
+
+typedef int PRBool;
+#define PR_TRUE 1
+#define PR_FALSE 0
+
+typedef enum { PR_FAILURE = -1, PR_SUCCESS = 0 } PRStatus;
+
+typedef struct PK11SlotInfoStr PK11SlotInfo;
+
+typedef SECStatus (*NSSInitFunc)(const char *configdir);
+typedef SECStatus (*NSSShutdownFunc)(void);
+typedef PK11SlotInfo* (*PK11GetInternalKeySlotFunc)(void);
+typedef void (*PK11FreeSlotFunc)(PK11SlotInfo *slot);
+typedef SECStatus (*PK11CheckUserPasswordFunc)(PK11SlotInfo *slot, char *pw);
+typedef SECStatus
+    (*PK11AuthenticateFunc)(PK11SlotInfo *slot, PRBool loadCerts, void *wincx);
+typedef SECStatus
+    (*PK11SDRDecryptFunc)(SECItem *data, SECItem *result, void *cx);
+typedef void (*SECITEMFreeItemFunc)(SECItem *item, PRBool free_it);
+typedef void (*PLArenaFinishFunc)(void);
+typedef PRStatus (*PRCleanupFunc)(void);
+namespace webkit_glue {
+struct PasswordForm;
+}
+
+// A wrapper for Firefox NSS decrypt component.
+class NSSDecryptor {
+ public:
+  NSSDecryptor()
+      : NSS_Init(NULL), NSS_Shutdown(NULL), PK11_GetInternalKeySlot(NULL),
+        PK11_CheckUserPassword(NULL), PK11_FreeSlot(NULL),
+        PK11_Authenticate(NULL), PK11SDR_Decrypt(NULL), SECITEM_FreeItem(NULL),
+        is_nss_initialized_(false) {}
+  ~NSSDecryptor();
+
+  // Initializes NSS if it hasn't already been initialized.
+  bool Init(const std::wstring& /* dll_path */,
+            const std::wstring& /* db_path */);
+
+  // Decrypts Firefox stored passwords. Before using this method,
+  // make sure Init() returns true.
+  string16 Decrypt(const std::string& crypt) const;
+
+  // Parses the Firefox password file content, decrypts the
+  // username/password and reads other related information.
+  // The result will be stored in |forms|.
+  void ParseSignons(const std::string& content,
+                    std::vector<webkit_glue::PasswordForm>* forms);
+
+  // Reads and parses the Firefox password sqlite db, decrypts the
+  // username/password and reads other related information.
+  // The result will be stored in |forms|.
+  bool ReadAndParseSignons(const FilePath& sqlite_file,
+                           std::vector<webkit_glue::PasswordForm>* forms);
+ private:
+  PK11SlotInfo* GetKeySlotForDB() const { return PK11_GetInternalKeySlot(); }
+  void FreeSlot(PK11SlotInfo* slot) const { PK11_FreeSlot(slot); }
+
+  // Methods in Firefox security components.
+  NSSInitFunc NSS_Init;
+  NSSShutdownFunc NSS_Shutdown;
+  PK11GetInternalKeySlotFunc PK11_GetInternalKeySlot;
+  PK11CheckUserPasswordFunc PK11_CheckUserPassword;
+  PK11FreeSlotFunc PK11_FreeSlot;
+  PK11AuthenticateFunc PK11_Authenticate;
+  PK11SDRDecryptFunc PK11SDR_Decrypt;
+  SECITEMFreeItemFunc SECITEM_FreeItem;
+
+  // Libraries necessary for decrypting the passwords.
+  static const wchar_t kNSS3Library[];
+
+  // True if NSS_Init() has been called
+  bool is_nss_initialized_;
+
+  DISALLOW_COPY_AND_ASSIGN(NSSDecryptor);
+};
+
+#endif  // CHROME_BROWSER_IMPORTER_NSS_DECRYPTOR_MAC_H_