am b6ddc7ae: Notify native plugin code when the browser discards the customView.

Merge commit 'b6ddc7ae3507f0e1ea9a76c76f829bc8b26a292c' into eclair-mr2-plus-aosp

* commit 'b6ddc7ae3507f0e1ea9a76c76f829bc8b26a292c':
  Notify native plugin code when the browser discards the customView.