Reduce console spam from master_preferences.
Reduce console spam from master_preferences.

It's ok (and common) for master preferences to not exist.

TEST=compiles

Review URL: http://codereview.chromium.org/3413022

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@59984 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