Chrome Version: R73
OS: Chrome OS

When moving focus from input box A to input box B.
The IME extension should receive the events in the order.
1. blur in input box a.
2. focus in input box b.
3. onsurrounding text event fire.

What is the expected result?
1. onBlur for A.
2. onFocus for B.
3. onSurroundingTextChanged for B.

What happens instead?
1. onSurroundingTextChanged for B.
2. onBlur for A.
3. onFocus for B.