tree c43ccec9adf34841d9c5442bc8f1fff75d330a21
parent df3722895172e03c81787f62d922daabaad3e20b
author Gilles Debunne <debunne@google.com> 1319580316 -0700
committer Gilles Debunne <debunne@google.com> 1323397609 -0800

Performance improvements for long text edition.

Limit each parse to batches of a few words, to keep the UI thread
responsive.

Possible optimizations for the future:
- SpellCheck in a thread, but that requires some locking mecanism
- Only spell check what is visible on screen. Will require additional
  spans to tag the pieces of text.

This is a cherry pick of 145656 into ICS-MR1

Patch Set 2: Make the Runnable shared and stop it when detached.

Change-Id: Ibf8e98274bda84b7176aac181ff267fc1f1fa4cb