Add a method for normalizing path separators on Windows.

base/file_path.cc

 // Copyright (c) 2010 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.
 
 #include "base/file_path.h"
 
 #if defined(OS_MACOSX)
 #include <CoreServices/CoreServices.h>
 #endif
 
@@ skipping 1106 matching lines @@
 
   std::vector<FilePath::StringType>::const_iterator it = components.begin();
   for (; it != components.end(); ++it) {
     const FilePath::StringType& component = *it;
     if (component == kParentDirectory)
       return true;
   }
   return false;
 }
 
+#if defined(FILE_PATH_USES_WIN_SEPARATORS)
+FilePath FilePath::NormalizeWindowsPathSeparators() const {
+  StringType copy = path_;
+  for (size_t i = 1; i < arraysize(kSeparators); ++i) {
+    std::replace(copy.begin(), copy.end(), kSeparators[i], kSeparators[0]);
+  }
+  return FilePath(copy);
+}
+#endif