Dialog still show when activity destroyed will cause leak.
Dismiss dialog when activity onDestroy to fix this issue.
Fix: 279522922
Test: Manually with "Don't keep activities"
Test: Robolectric Test
Change-Id: I445f4b160020823a6f6e2883055218c1224e2c48
When the screen rotates, currently the startActivityForResult() within
RequestPermissionActivity could be called multiple times, so the
multiple RequestPermissionHelperActivity will be created, which caused
the issue.
Replace RequestPermissionHelperActivity with AlertDialog (as an
unfinished TODO of RequestPermissionHelperActivity) can fix this issue.
Fix: 243601277
Test: Manually with adb shell commands
Test: Unit test
Change-Id: If1e2b2807b69a87bbcfffa543ee0da134d4c4312
