Add a URL entry prompt

R=sky@chromium.org
BUG=none

Review URL: https://codereview.chromium.org/140103004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@245040 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 245040
Roll libvpx 241571:244953

Pull from upstream on Dec 26th:
https://codereview.chromium.org/121473002/

Clean up messages:
https://codereview.chromium.org/130883002/

Fix webview build:
https://codereview.chromium.org/138073007/

R=tomfinegan@chromium.org, tomfinegan

Review URL: https://codereview.chromium.org/139873002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@245041 0039d316-1c4b-4281-b951-d872f2087c98
Update .DEPS.git

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@245042 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 245042