- A recent change applied IME insets equal to keyboard's height to Launcher's BaseDragLayer
- mSystemGestureRegion takes a max of both IME insets and gesture insets, and caused a bug that while a live tile have keyboard open is in Overview, bottom half of the screen ignored touches to dismiss the task
- The bug that ointroduceds IME insets consideration no longer repros, thus removing IME insets from mSystemGestureRegion to sovle the issue
Fix: 404376494
Test: manual
Flag: EXEMPT bug fix
Change-Id: I5d8861ea204df9898b10cb7ccdeba94e94e5909c