Revert 252829 "Blink roll 167634:167638"

Revert 252829 "Blink roll 167634:167638"

All blink rolls after 167634 have shown various PDF scaling and printing errors such as

PrintPreviewWebUITest.PrintToPDFSelectedHideFitToPageOption
http://build.chromium.org/p/chromium.win/builders/Win7%20Tests%20%28dbg%29%282%29/builds/20077

PrintPreviewWebUITest.SourceIsPDFShowFitToPageOption
http://build.chromium.org/p/chromium.win/builders/Win7%20Tests%20%28dbg%29%284%29/builds/25035

PrintPreviewWebUITest.PrintScalingDisabledForPlugin
http://build.chromium.org/p/chromium.win/builders/Win7%20Tests%20%28dbg%29%285%29/builds/25320

> Blink roll 167634:167638
>
> http://build.chromium.org/f/chromium/perf/dashboard/ui/changelog_blink.html?url=/trunk&range=167635:167638&mode=html
> TBR=
> BUG=
>
> Review URL: https://codereview.chromium.org/176443002

TBR=eseidel@chromium.org

Review URL: https://codereview.chromium.org/176543003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@252855 0039d316-1c4b-4281-b951-d872f2087c98