Make tips and their links readable in all themes.
Make tips and their links readable in all themes.

BUG= http://crbug.com/20506
TEST= Install any theme.  Observe that tips are legible.

Review URL: http://codereview.chromium.org/182012

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@24823 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser