Bug 998213 - [Tarako][Keyboard] Unable to input keys after doing some steps
 - Wait for initializing the layout and IM engine and then show the
   keyboard.
Merge pull request #18486 from RudyLu/keyboard/Bug998213-v1.3t

Bug 998213 - [Tarako][Keyboard] Unable to input keys after doing some st...
r=timdream