Revert of Remove remaining displayInvalidatedRegion callers (https://codereview.chromium.org/223903005/)

Reason for revert:
inspector/timeline/timeline-paint.html fails after conversion: http://build.chromium.org/p/chromium.webkit/builders/WebKit%20Linux%20%28deps%29/builds/27946

Original issue's description:
> Remove remaining displayInvalidatedRegion callers
> 
> These two tests are just using it to force display and don't have pixel
> results, so they can just be converted.
> 
> R=ojan@chromium.org
> BUG=345027
> 
> Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=170794

TBR=ojan@chromium.org,enne@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=345027

Review URL: https://codereview.chromium.org/225013004

git-svn-id: svn://svn.chromium.org/blink/trunk@170819 bbb929c8-8fbe-4397-9dbb-9b2b20218538