Assign mSwipeTimeMillis a value that is proportional to mSwipeDistance.

Since mSwipeDistance is proportional to the width of the screen, the
swipe time millis should also be proportional to mSwipeDistance to
ensure it is reliably registered as a slow swipe.

Bug: 156868081
Test: atest TouchExplorerTest reliably passing.
Change-Id: I692c40f0436e9e866b62c1c848a3032f164fb4ce
1 file changed