RESTRICT AUTOMERGE Add a test to verify IME visibility after device unlocked.

As CL[1] to fix IME will shown when the dialog's Editor focus been cleared
after device screen-off.

Add tests in KeyboardVisibilityControlTest to verify IME should
invisible when focusing back to dialog after device unlocked:

  - testImeState_EditorDialogLostFocusAfterUnlocked_Unspecified
  - testImeState_EditorDialogLostFocusAfterUnlocked_Visible
  - testImeState_EditorDialogLostFocusAfterUnlocked_AlwaysVisible
  - testImeState_EditorDialogLostFocusAfterUnlocked_Hidden
  - testImeState_EditorDialogLostFocusAfterUnlocked_AlwaysHidden

[1]: I37ae6e30d1de581ba15131c2a90396b3a522a4d6

Bug: 161506356
Test: atest KeyboardVisibilityControlTest

Merged-In: I2b1193f541933380fc97d83aee2da1e9d5f0faa9
Change-Id: I2b1193f541933380fc97d83aee2da1e9d5f0faa9
(cherry picked from commit 4c4132e97e641738fcb4ac8f89020e56f44abf81)
1 file changed