Basic autofill into password value on user gesture only.

BUG=163072

Review URL: https://codereview.chromium.org/83023017

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@238561 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 238561
Bumping up the limit of users to 10 and adding UMA stats for user count

Several people asked to increase the upper limit of simultaneous users for a session. This CL is allowing to add up to 10 users at the same time - recording the actual number in UMA stats so that we can see what makes sense.

BUG=321739
TEST=visual

Review URL: https://codereview.chromium.org/88983002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@238562 0039d316-1c4b-4281-b951-d872f2087c98
Eliminate the OmniboxEditModel::GetViewText() method.

The method is only used one place, which is a somewhat unnecessary call in the same class.

BUG=

Review URL: https://codereview.chromium.org/89273002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@238563 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 238563