Merge "Remove workaround for libart greylist." into nyc-dev

static constexpr const char* kPublicNativeLibrariesSystemConfig = "/system/etc/public.libraries.txt";

static constexpr const char* kPublicNativeLibrariesVendorConfig = "/vendor/etc/public.libraries.txt";

static bool namespace_workaround_enabled(int32_t target_sdk_version) {

  return target_sdk_version <= 23;

}

class LibraryNamespaces {

 public:

  LibraryNamespaces() : initialized_(false) { }

  bool InitPublicNamespace(const char* library_path, int32_t target_sdk_version) {

    std::string publicNativeLibraries = public_libraries_;

    // TODO (dimitry): This is a workaround for http://b/26436837

    // will be removed before the release.

    if (namespace_workaround_enabled(target_sdk_version)) {

      // check if libart.so is loaded.

      void* handle = dlopen("libart.so", RTLD_NOW | RTLD_NOLOAD);

      if (handle != nullptr) {

        publicNativeLibraries += ":libart.so";

        dlclose(handle);

      }

    }

    // END OF WORKAROUND

    UNUSED(target_sdk_version);

    // (http://b/25844435) - Some apps call dlopen from generated code (mono jited

    // code is one example) unknown to linker in which  case linker uses anonymous

    // namespace. The second argument specifies the search path for the anonymous