Notification scheduler: Fix a JNI crash in DisplayAgent.

JNI generator can't generate private class function. Move the native
call into static function in DisplayAgent.

Bug: NONE
Change-Id: I23b957239f0deb358ab6866035ea5d123308a0c8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1717724
Reviewed-by: Hesen Zhang <hesen@chromium.org>
Commit-Queue: Xing Liu <xingliu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#680701}
1 file changed