Change the "Brasilia" time zone to follow America/Sao_Paulo DST rules.
Previously it was using America/Araguaina, which does not currently observe
DST. Brasilia is actually in an area that follows the Sao_Paulo rules.
Bug 2362824
diff --git a/res/xml/timezones.xml b/res/xml/timezones.xml
index c9667b8..9c7bd56 100644
--- a/res/xml/timezones.xml
+++ b/res/xml/timezones.xml
@@ -19,7 +19,7 @@
<timezone id="America/Manaus">Manaus</timezone>
<timezone id="America/Santiago">Santiago</timezone>
<timezone id="America/St_Johns">Newfoundland</timezone>
- <timezone id="America/Araguaina">Brasilia</timezone>
+ <timezone id="America/Sao_Paulo">Brasilia</timezone>
<timezone id="America/Argentina/Buenos_Aires">Buenos Aires</timezone>
<timezone id="America/Godthab">Greenland</timezone>
<timezone id="America/Montevideo">Montevideo</timezone>