Remove unused errno parsing for leveldb status codes

third_party/leveldatabase/env_chromium.h

 // Copyright (c) 2013 The LevelDB Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file. See the AUTHORS file for names of contributors.
 
 #ifndef THIRD_PARTY_LEVELDATABASE_ENV_CHROMIUM_H_
 #define THIRD_PARTY_LEVELDATABASE_ENV_CHROMIUM_H_
 
 #include <deque>
 #include <set>
 #include <string>
@@ skipping 42 matching lines @@
                             const std::string& message,
                             MethodID method,
                             base::File::Error error);
 leveldb::Status MakeIOError(leveldb::Slice filename,
                             const std::string& message,
                             MethodID method);
 
 enum ErrorParsingResult {
   METHOD_ONLY,
   METHOD_AND_PFE,
-  METHOD_AND_ERRNO,
   NONE,
 };
 
 ErrorParsingResult ParseMethodAndError(const leveldb::Status& status,
                                        MethodID* method,
-                                       int* error);
+                                       base::File::Error* error);
 int GetCorruptionCode(const leveldb::Status& status);
 int GetNumCorruptionCodes();
 std::string GetCorruptionMessage(const leveldb::Status& status);
 bool IndicatesDiskFull(const leveldb::Status& status);
 
 class UMALogger {
  public:
   virtual void RecordErrorAt(MethodID method) const = 0;
   virtual void RecordOSError(MethodID method,
                              base::File::Error error) const = 0;
@@ skipping 127 matching lines @@
     void (*function)(void*);
   };
   typedef std::deque<BGItem> BGQueue;
   BGQueue queue_;
   LockTable locks_;
 };
 
 }  // namespace leveldb_env
 
 #endif  // THIRD_PARTY_LEVELDATABASE_ENV_CHROMIUM_H_