Update QuickSearchBox for guava 27.1

CharMatcher.WHITESPACE has been replaced with CharMatcher.whitespace().

Bug: 130306229
Test: m checkbuild
Change-Id: I9196cddee5e0fb08dee6c6fa868cdb33c43c1888
Merged-In: I9196cddee5e0fb08dee6c6fa868cdb33c43c1888
Exempt-From-Owner-Approval: cherry pick
(cherry picked from commit a74d860aa3ac4e27c1938028fa663a25f71d9fbe)
1 file changed