1. @DomName('DeprecatedStorageQuota.queryUsageAndQuota')
  2. @DocsEditable()
  3. @Experimental()
void queryUsageAndQuota(StorageUsageCallback usageCallback, [ StorageErrorCallback errorCallback ])

Source

@DomName('DeprecatedStorageQuota.queryUsageAndQuota')
@DocsEditable()
@Experimental() // untriaged
void queryUsageAndQuota(StorageUsageCallback usageCallback,
    [StorageErrorCallback errorCallback]) native;