Determine whether or not a prerender tag comes from a
currently prerendering RenderView on the UI thread, rather
than the IO thread.

BUG=none
TEST=PrerenderBrowserTest.PrerenderInfiniteLoop (Currently FLAKY).

Review URL: http://codereview.chromium.org/7077009

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@86968 0039d316-1c4b-4281-b951-d872f2087c98
5 files changed