Remove reference to missing assets. 140 and 180 have been removed.

Also fixes issues 223928, 261365, 261992, 261994, 267015, 281758

BUG=260703

Review URL: https://codereview.chromium.org/52713010

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@232633 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 232633