Fix cts fail for testAutofillCustomHighligth_multipleFields_hasHighligth

The bounds of drawable may be changed during verification due to the
bounds reference to static variable. It would be better to cache the
bounds of drawable and verify it.

Bug: 154457870
Test: atest LoginWithCustomHighlightActivityTest
Change-Id: Ie73157d2570ea83e7153e5e95822798dc20f1a31
1 file changed