c3672cd3f7
After an activity instance state is saved due to onStop()/onPause(), there is a small window where it can still get key events like the back button since we still allow the ActivityThread to handle pending messages (like memory trim request) before informing the activity manager that we are done. If the activity is stopped, we will now drop non-terminal input events and set the cancel flag on terminal events. Bug: 18151331 Change-Id: I370d7c871530eea4b16fa42428d0248f1a87abb6