Chromium change: https://github.com/chromium/chromium/commit/94a231f90d89f9af2996172fae508f9472d573cb Remove unused rendering code in TabLayout Follow up to https://chromium-review.googlesource.com/c/chromium/src/+/3388174 and continues to simplify the Tab rendering logic for phones. Also deletes anything related to tilting/rotating and card backs for the tabs. Bug: 1287653