Update public's README file to reflect recent changes.

public/testing is no more, since that moved into Chromium Content
module.

R=abarth@chromium.org

Review URL: https://codereview.chromium.org/166453004

git-svn-id: svn://svn.chromium.org/blink/trunk@167261 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Android: Make date/time input appearance consistent with SELECT button.

This is a follow-up of r167168.
 - Specify background-color:ButtonFace because INPUT has white background by default.
 - Specify #a9a9a9 border for cases that elements are styled by web authors.
 - Specify background-color:ButtonFace and color:GrayText for disabled/read-only state.
  This needs to be in theemChromiumAndroid.css because Android uses themWin.css
  too and it contains another rulesets for input[...]:disabled. The order of these
  CSS files are: html.css, themeWin.css, then themeChromiumAndroid.css.

BUG=343833
TEST=automated
NOTRY=true

Review URL: https://codereview.chromium.org/169173002

git-svn-id: svn://svn.chromium.org/blink/trunk@167262 bbb929c8-8fbe-4397-9dbb-9b2b20218538