
Restrict background color workaround to pre-527 Webkit. (According to http://webkit-util.appspot.com/rev/ change 34682 went into build 527.)

R=nicksantos
DELTA=3  (0 added, 1 deleted, 2 changed)


Revision created by MOE tool push_codebase.
MOE_MIGRATION=3524


git-svn-id: 35241bd708fe29f1f6c7a4322d322e99ff93b95e@1356 0b95b8e8-c90f-11de-9d4f-f947ee5921c8

homer6/google-closure-library,homer6/google-closure-library,KgDesignes/closure-library,thinkfuse/google-closure,thinkfuse/google-closure,knutwalker/google-closure-library,homer6/google-closure-library,knutwalker/google-closure-library,thinkfuse/google-closure,KgDesignes/closure-library,KgDesignes/closure-library