Make fixed size scrolling more like other lists.

chrome/browser/resources/settings/settings_shared_css.html

Index: chrome/browser/resources/settings/settings_shared_css.html
diff --git a/chrome/browser/resources/settings/settings_shared_css.html b/chrome/browser/resources/settings/settings_shared_css.html
index f80a70d076c497d5241f99bf7be66ba89c2f9556..7204f8a8c17f2c59cf48139b53f558be373313a0 100644
--- a/chrome/browser/resources/settings/settings_shared_css.html
+++ b/chrome/browser/resources/settings/settings_shared_css.html
@@ -231,7 +231,6 @@
       .fixed-height-list {

[scottchen, 2017/05/03 23:01:27]

- Would fixed-height-container be the more suitable name now?
- Can this just be within search_engines_list.html, if that's the only place
that uses this class?

[dschuyler, 2017/05/08 20:35:29]

I'm flexible on the class name, but I agree that it should be moved to the file
where it is used it it's only used in one place.

Also consider a comment about the "* 6" part of the calc (i.e. why is it there).

[hcarmona, 2017/05/08 21:32:23]

Sorry for forwarding before updating the CL.
Moved to search_engines_list.html, added comment, and renamed.

         max-height: calc((var(--settings-row-min-height) +
                           var(--settings-separator-height)) * 6);
-        overflow-y: auto;
       }
 
       /* A row with two lines of text. Often the lower line will be .secondary.