[WebExtension port] data storage, privacy settings

[myrdd]

task list

• [x] weApi.storage done
  • functions
  • weApi.storage.local.get()
  • weApi.storage.local.set()
  • weApi.storage.onChanged
  • [x] implementation
  • [x] about:config settings part
  • [x] JSON files part (i.e., subscription files)
  • [x] tests
  • [x] weApi.storage.local.get()
    • get("string") — get one
    • get([...] | {...}) — get multiple
    • get() — get all
  • [x] weApi.storage.local.set()
  • [x] weApi.storage.onChanged
• [x] privacy settings -> privacy.network done
  • [x] network.networkPredictionEnabled
  • controls the following prefs:
    • network.dns.disablePrefetch
    • network.predictor.enabled
    • network.prefetch-next
    • network.http.speculative-parallel-limit
  • Mozilla's implementation
• [ ] refactorings
  • [ ] deprecate LegacyApi.rpPrefBranch
  • [ ] deprecate LegacyApi.createPrefObserver
  • [ ] deprecate LegacyApi.prefsService

[myrdd]

892 requires get() and onChanged. The latter seems to fail currently, so some tests need to be written.

[myrdd]

Most tasks are done. I'm going to create a new nightly release.