Update behavior of one-click infobar to remove modal dialog, add "undo".

There are many non-signin-related files in this CL because of a method signature change.  The significant changes are in the one_click_* files.

BUG=125253
TEST=See bug description for complete UX spec.


Review URL: https://chromiumcodereview.appspot.com/10332185

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@139365 0039d316-1c4b-4281-b951-d872f2087c98
31 files changed