Add two new autofill browser tests.
Add two new autofill browser tests.

* Test that autofill can be initiated by pressing the down arrow in a fillable field.
* Test that autofill works after reloading the page.

BUG=69219
TEST=interactive_ui_test --gtest_filter=AutoFillTest.*

Review URL: http://codereview.chromium.org/6316001

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@71406 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser