Reland "remove clipbounds flag"

This reverts commit 2aa26abe6daad2fc933ef638992cce71cb65f458.

Reason for revert: CL this depends on has now landed.

Original change's description:
> Revert "remove clipbounds flag"
> 
> This reverts commit 7e0489da25c578bd04ce74d03ad48198280ca3fd.
> 
> Reason for revert: missed a headless
> 
> Original change's description:
> > remove clipbounds flag
> > 
> > BUG=skia:
> > 
> > Change-Id: I55b3098abd5e566e9f8bf27988c33e531d2ea54d
> > Reviewed-on: https://skia-review.googlesource.com/7618
> > Reviewed-by: Mike Reed <reed@google.com>
> > Commit-Queue: Mike Reed <reed@google.com>
> > 
> 
> TBR=reed@google.com,reviews@skia.org
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=skia:
> 
> Change-Id: Id1310372499905dddcca4b9454f6a81d192a1e32
> Reviewed-on: https://skia-review.googlesource.com/7629
> Commit-Queue: Mike Reed <reed@google.com>
> Reviewed-by: Mike Reed <reed@google.com>
> 

TBR=reviews@skia.org,reed@google.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Change-Id: I593bdad8d654e272e772559aa0fccafcce8ff541
Reviewed-on: https://skia-review.googlesource.com/7636
Commit-Queue: Ben Wagner <benjaminwagner@google.com>
Reviewed-by: Ben Wagner <benjaminwagner@google.com>
1 file changed