Load all CSS in the top queue

Authored by ori.


Load all CSS in the top queue

As the waterfall chart in
http://www.webpagetest.org/result/150817_ER_1E66/1/details/ clearly
demonstrates, the <link rel=stylesheet> for the bottom CSS queue is clearly
render-blocking. The fact that it is in the bottom of <body> only means the
browser discovers it later, when its connection to the server is already
saturated by requests for images that are referenced in the body HTML.

Change-Id: Icf0968c5984f4d3c3dbac1c7e1d539052fa5bd74