Temporarily turn preferLowPowerWebGLRendering setting on by default until we deal better with WebGL content in background tabs.
<rdar://problem/29870033>
Created attachment 298124 [details] Patch
Comment on attachment 298124 [details] Patch Clearing flags on attachment: 298124 Committed r210372: <http://trac.webkit.org/changeset/210372>
All reviewed patches have been landed. Closing bug.