Bug 496360 part.1 Make TextChangeEvent of IMEContentObserver mergeable r=smaug
Bug 496360 part.2 IMEContentObserver shouldn't dispatch TextChangeEvent while editor handles an edit action r=ehsan+smaug, sr=smaug
Bug 496360 part.3 IMEContentObserver shouldn't dispatch SelectionChangeEvent nor PositionChangeEvent while editor handles an edit action r=smaug
Bug 496360 part.4 Don't recompute text length of before the insertion point at adding multiple lines into an HTML editor r=smaug
Bug 496360 part.5 Don't recompute text length of before the start range at removing multiple lines into an HTML editor r=smaug
Bug 1043182 Removed and inserted text length which are notified by CharacterDataWillChange() and CharacterDataChanged() should be converted to the length with native new lines in IMEContentObserver r=smaug