[MD settings] set pref to valid slider value

chrome/browser/resources/settings/appearance_page/appearance_fonts_page.html

Index: chrome/browser/resources/settings/appearance_page/appearance_fonts_page.html
diff --git a/chrome/browser/resources/settings/appearance_page/appearance_fonts_page.html b/chrome/browser/resources/settings/appearance_page/appearance_fonts_page.html
index 53654b05069e6e44bf1a3c9ee8ebdead5643cc57..a5bcb3077942667842b9efeca5d22ac1f4c1335b 100644
--- a/chrome/browser/resources/settings/appearance_page/appearance_fonts_page.html
+++ b/chrome/browser/resources/settings/appearance_page/appearance_fonts_page.html
@@ -22,10 +22,12 @@
     <div class="settings-box">
       <div class="start">$i18n{minimumFont}</div>
       <div class="list-item"
-          style$="[[computeStyle_(
+          style$="[[computeMinimumStyle_(

[Dan Beam, 2017/03/14 03:27:19]

btw, you can now do

style$="font-family: [[computeFontFamily_(...)]]; font-size:
[[computeFontSize_(...)]]"

if that's useful to you

[dschuyler, 2017/03/14 18:55:31]

Done.

               prefs.webkit.webprefs.minimum_font_size.value,
               prefs.webkit.webprefs.fonts.standard.Zyyy.value)]]">
-        <span>[[prefs.webkit.webprefs.minimum_font_size.value]]</span>
+        <span>[[
+            computeMinimumFontSize_(
+                prefs.webkit.webprefs.minimum_font_size.value)]]</span>
         : $i18n{quickBrownFox}
       </div>
       <cr-slider id="minimumSizeSlider"