cc: Add GL debug markers for gpu rasterization.

Review URL: https://codereview.chromium.org/155263003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@249320 0039d316-1c4b-4281-b951-d872f2087c98
Sort the host list.

BUG=270424

Review URL: https://codereview.chromium.org/148313004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@249321 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 249320
SVN changes up to revision 249321