Define FilePath::NormalizePathSeparators on all platforms

base/file_path.cc

Index: base/file_path.cc
diff --git a/base/file_path.cc b/base/file_path.cc
index 3666ff2e82a4c465d86f6319ddefe7d4f428053b..6f286543bc50cc502bb24f4d5b2d9da127d860b7 100644
--- a/base/file_path.cc
+++ b/base/file_path.cc
@@ -1210,12 +1210,14 @@ void FilePath::StripTrailingSeparatorsInternal() {
   }
 }
 
+FilePath FilePath::NormalizePathSeparators() const {
 #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);
-}
+#else
+  return *this;
 #endif
+}