Expand the Material Design hover as it fades out when a ripple is triggered.

BUG=582253
TEST=manual

Review URL: https://codereview.chromium.org/1890243002

Cr-Commit-Position: refs/heads/master@{#389377}
(cherry picked from commit caf80a39907860be5a649a81e5418721faac2f98)

Review URL: https://codereview.chromium.org/1924663007 .

Cr-Commit-Position: refs/branch-heads/2704@{#285}
Cr-Branched-From: 6e53600def8f60d8c632fadc70d7c1939ccea347-refs/heads/master@{#386251}
6 files changed