ACTION-381: Draft a new subsection to section 7 discussing the mixing of trusted/untrusted information in the UI

If I have this action right I am not sure if this belongs in section 7
- The section is titled Security Information Available to the User
Agent
 
Furthermore, section 7 has a heading titled "defined by user agent" and
UI is defined by user agent.  Is the WG making a statement that this
particular UI decision should not be left up to browser developer
community?
 
I am thinking that section 7 is the inputs and UI is an output, UI is
the application or use of security information. Do we need a new
section?
 
Cheers
Bill D.