[Andorid] ClipDrawable progress bar experiment.
Recently it was discovered that ClipDrawable is much faster than our
default ToolbarProgressBar on content shell.
So we plan to experiment with ClipDrawable based progress bar
implementation.
BUG=
455891
Committed:
https://crrev.com/b13144e2f2b4ac80f81cee8ce4d4c7f4831b625e
Cr-Commit-Position: refs/heads/master@{#318292}