Merge "AAPT2: Fix mkdirs implementation"

bool mkdirs(const std::string& path) {

  constexpr const mode_t mode = S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IXGRP;

  size_t current_pos = 0u;

  // Start after the first character so that we don't consume the root '/'.

  // This is safe to do with unicode because '/' will never match with a continuation character.

  size_t current_pos = 1u;

  while ((current_pos = path.find(sDirSep, current_pos)) != std::string::npos) {

    std::string parent_path = path.substr(0, current_pos);

    int result = ::android::base::utf8::mkdir(parent_path.c_str(), mode);