Corrupted powerwash proposal UI

When getting screensize for powerwash reset, making sure the currentScreen is 'reset', not 'account-picker'.

BUG=615088
TEST=Multiple tests on M52, the corrupted powerwash proposal UI doesn't happen any more.
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:closure_compilation

Review-Url: https://codereview.chromium.org/2109763003
Cr-Commit-Position: refs/heads/master@{#402676}
1 file changed