FinalExtensionSeparatorPosition  124 base/files/file_path.cc   const StringType::size_type last_dot = FinalExtensionSeparatorPosition(path);
FinalExtensionSeparatorPosition  378 base/files/file_path.cc   const StringType::size_type dot = FinalExtensionSeparatorPosition(base.path_);
FinalExtensionSeparatorPosition  400 base/files/file_path.cc   const StringType::size_type dot = FinalExtensionSeparatorPosition(path_);