Make all pepper plugins default to windowless and transparent.
Make all pepper plugins default to windowless and transparent.

Review URL: http://codereview.chromium.org/306018

git-svn-id: http://src.chromium.org/svn/trunk/src@29582 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 7b896feaa87f72c0e40d502c9a1f27401349c438
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser