This removes:
- PersistentBase::SetWeak that takes WeakCallbackData.
  The embedders should use the version that takes WeakCallbackInfo.
- PersistentBase::SetPhantom.
  The embedders should SetWeak that takes WeakCallbackInfo.

Functions in DefaultPersistentValueMapTraits are changed to accept
WeakCallbackInfo instead of WeakCallbackData.

BUG=chromium:609808
LOG=NO

Review-Url: https://codereview.chromium.org/1953263002
Cr-Commit-Position: refs/heads/master@{#36079}