Fix crash due to AutocompletePopup trying to draw the old results when they were no longer available.I introduced this regression when moving |result_| to the AutocompleteController; the specific problem was the "result_.CopyFrom(latest_result_);" line I added when handling the synchronous messages being available.  This was done so the popup could get at the new results to update the edit with them.Instead, go back to the old method (of not updating the results until the first coalesced update came in), and pass the appropriate result set as a Details<> in the notification, so the popup can get at it without having to know how the controller works under-the-hood.BUG=11742
Review URL: http://codereview.chromium.org/119116

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@17562 0039d316-1c4b-4281-b951-d872f2087c98