Re-implement form validation message UI with native widgets. (Android)
The current form validation message UI with Shadow DOM has a lot of
problems and some of them are unresolvable if we continue to use
Shadow DOM. We should stop using Shadow DOM.
This patch implements an Android UI for validation message with
PopupWindow.
bubble.9.png and bubble_arrow_up.png were drawn by tkent@.
BUG=90252,90958,92816,104829,106621,113352,115451,125330,143356,155448,166981,231170,235721,246448
Review URL: https://chromiumcodereview.appspot.com/
15538003
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@204607 0039d316-1c4b-4281-b951-d872f2087c98