Cleanup Chrome's LevelDB env to conform to C++ style guidelines.

third_party/leveldatabase/env_chromium_win.cc

 // 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.
 
+#include "third_party/leveldatabase/env_chromium_win.h"
+
 #include "base/debug/trace_event.h"
 #include "base/files/file.h"
 #include "base/files/file_path.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/win/win_util.h"
-#include "chromium_logger.h"
-#include "env_chromium_stdio.h"
-#include "env_chromium_win.h"
-
-using namespace leveldb;
+#include "third_party/leveldatabase/chromium_logger.h"
+#include "third_party/leveldatabase/env_chromium_stdio.h"
 
 namespace leveldb_env {
 
 namespace {
 
 static std::string GetWindowsErrorMessage(DWORD err) {
   LPTSTR errorText(NULL);
   FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_ALLOCATE_BUFFER |
                     FORMAT_MESSAGE_IGNORE_INSERTS,
                 NULL,
@@ skipping 321 matching lines @@
     return Status::OK();
   }
 }
 
 void ChromiumEnvWin::RecordOSError(MethodID method, DWORD error) const {
   RecordErrorAt(method);
   GetOSErrorHistogram(method, ERANGE + 1)->Add(error);
 }
 
 }  // namespace leveldb_env