Bug 107803

Description of problem:
browser.display.screen_resolution is the Mozilla pref designed to tailor
effective DPI to user needs so that fonts specified in points via css size
reasonably. All Mozilla versions I've tested increase the size of all fonts
specfied in points, except the current 1.4.1 version. This includes the
mozilla.org tarball of v1.5 run under severn beta3.

Version-Release number of selected component (if applicable):
1.4.1-7

How reproducible:
easy

Steps to Reproduce:
1-add 'user_pref("browser.display.screen_resolution", 100);' to user.js
2-start Mozilla 1.4.1 to indicated URL
3-take a screenshot of Mozilla window
4-close Mozilla
5-add 'user_pref("browser.display.screen_resolution", 120);' to user.js
6-start Mozilla 1.4.1 to indicated URL
7-take a screenshot of Mozilla window
8-close Mozilla
9-compare screenshots
10-Repeat steps above, but substitute mozilla.org's tarball of v1.5
11-Repeat steps 1-8 above, but use mozilla.org's tarball of v1.5 or v1.4.1 on
SuSE, Mandrake, OS/2 and/or Win98 (in Win98 and OS/2, DPI must be changed via
system settings rather than user.js)
    
Actual results:
1-page text sized in points in both screenshots of 1.4.1-7 is identical
2-page text sized in points in all other screenshots is larger at 120DPI than at
100DPI
3-page text overall is sized smaller in 1.4.1-7 than the others

Expected results:
1-page text sized in points is larger at 120DPI than at 100DPI in every
screenshot pair
2-page text overall is sized similarly in all screenshots, depending on the
actual fonts available to Mozilla

Additional info:
1-dbaron & bz on moznet are of the opinion that this is a Mozilla rather than a
Fedora bug. I tried contacting blizzard for an opinion about this, but was
unsuccessful.
2-In every Mozilla screenshot following, the default 16px font size setting was
used. The Konqueror shot was made on a fresh severn3 install with no system
settings or Konq specific changes having been made.