Revert of FrameGenerator should not be created until an AcceleratedWidget is available (patchset #6 id:100001 of https://codereview.chromium.org/2694043003/ )
Reason for revert:
This might cause the crash (crbug/695371)
Original issue's description:
> FrameGenerator should not be created until an AcceleratedWidget is available
>
> FrameGenerator does not have anything useful to do until an
> AcceleratedWidget is provided. This CL delays the creation of
> FrameGenerator until a widget is available.
>
> We also remove the unit test because it's not doing anything useful
> right now.
>
> BUG=683732
>
> Review-Url: https://codereview.chromium.org/2694043003
> Cr-Commit-Position: refs/heads/master@{#452329}
> Committed: https://chromium.googlesource.com/chromium/src/+/c46bbe24124bdef62daa0e396bb4baa2681fd817
TBR=fsamuel@chromium.org,sky@chromium.org,samans@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=683732
Review-Url: https://codereview.chromium.org/2717453002
Cr-Commit-Position: refs/heads/master@{#452446}
6 files changed
