Drop unused member EmbedLiteCompositorParent.mChildMessageLoop
Merge pull request #24 from rojkov/embedlite_31_cleanup

Drop unused member EmbedLiteCompositorParent.mChildMessageLoop
[gcc-fix] Moved public dctor of ref-counted classes to protected. Now compiles on gcc483
[xulrunner] Sync with upstream. Merge remote-tracking branch 'origin/embedlite_31' into nemo_embedlite_31