Roll MaterialComponents to be7b95b05d0e6257c59546a3f45264202f046e3b

This CL rolls MaterialComponents to its latest version and add the new files to
BUILD.gn to fix the build.

BUG=714045

Review-Url: https://codereview.chromium.org/2832133003
Cr-Commit-Position: refs/heads/master@{#466304}
2 files changed