Add raw chromium source code for palm rejection

We are not adding Android.bp file here, because these files won't build
as-is. However, this commit shows the original code, and will help
highlight the changes that we have to do to the Chromium code in order
to get it to build on Android.

At the same time, add the logistical files like license, owners, etc.
The copybara file shows where each of the files is coming from.

The base commit for this code is: 3ab5cdfaae71146e0bfd4eea96ac5ae853b0a814
Link to revision: https://source.chromium.org/chromium/chromium/src/+/3ab5cdfaae71146e0bfd4eea96ac5ae853b0a814:

Bug: 216210262
Test: does not build, but will build in the next CL
Change-Id: Ic9c9ab7ea9a06b0a6faa10a6cdd7e28a224b678c
23 files changed
tree: 01cdd331e8b183470bf95ad8549f13c71f08eda0
  1. ui/
  2. copy.bara.sky
  3. LICENSE
  4. METADATA
  5. MODULE_LICENSE_BSD
  6. OWNERS