Update OTR icon; deeper shadows match the other platforms better.
Update OTR icon; deeper shadows match the other platforms better.

BUG=none
TEST=OTR icon's glasses are near-black, not gray

Review URL: http://codereview.chromium.org/5808002

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@69062 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