Added ContentCaptureEvent.mergeEvent() method for merging
view_text_changed and view_disappeared events.

Fixes: 124107816
Test: atest CtsContentCaptureServiceTestCases
Test: atest FrameworksCoreTests:android.view.contentcapture.ContentCaptureEventTest
Change-Id: I256906eafc7ecb43e9de5c24cec3a0c7e642eab2
3 files changed