Password manager: Test that forms with elements without name get saved

This is a browser test for the fix in https://codereview.chromium.org/69293008/.

BUG=282487

Review URL: https://codereview.chromium.org/70273002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@234783 0039d316-1c4b-4281-b951-d872f2087c98
Fix NaCl PLUGIN_PRINTF for EnqueueProgressEvent().

The event_type is now an enum instead of a string, so change
the format char. (after this CL: https://codereview.chromium.org/14588009)

BUG=none

Review URL: https://codereview.chromium.org/70513004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@234784 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 234783
SVN changes up to revision 234784