MSE: Complete removal of Blink-side support for LegacyFrameProcessor

MSE: Complete removal of Blink-side support for LegacyFrameProcessor

This is the last of a three-sided change to remove LegacyFrameProcessor
from Blink and Chromium now that the new FrameProcessor is stabilized.

R=acolwell@chromium.org,abarth@chromium.org
BUG=249422
TEST=No MSE layout test regression locally on Linux

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=177248

[wolenetz, 2014-06-03 02:58:59]

PTAL @ PS1
acolwell@: everything
abarth@: public/platform

See part 1/3 (https://codereview.chromium.org/310733002/) for a description of
this 3-sided change sequence.

[wolenetz, 2014-06-09 20:34:26]

PTAL @ PS2 (just a no-op rebase of PS1). Intent is to land this by EOW or early
next week if still no regressions seen with new FrameProcessor.

[acolwell GONE FROM CHROMIUM, 2014-06-13 18:31:18]

lgtm

[wolenetz, 2014-06-16 20:02:35]

Thanks for review. Landing this pends landing
https://codereview.chromium.org/315483002/

[wolenetz, 2014-06-16 20:03:10]

abarth@: ping

[wolenetz, 2014-06-16 20:50:00]

On 2014/06/16 20:03:10, wolenetz wrote:
> abarth@: ping

I'll have an updated patch set shortly relative to the updated part 1 of this
three sided change.

[wolenetz, 2014-06-16 20:51:09]

abarth@: PTAL @ patch set 4.
Thank you!

[abarth-chromium, 2014-06-16 22:44:58]

LGTM!

[wolenetz, 2014-06-19 17:40:46]

Thank you for reviews. The first two parts of this three-sided change have now
landed. I'll let things bake for a bit before landing this third CL (this CL
only cleans up obsolete interface/default constructors; no behavior change).

[wolenetz, 2014-06-30 20:23:13]

The CQ bit was checked by wolenetz@chromium.org

[commit-bot: I haz the power, 2014-06-30 20:24:15]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/wolenetz@chromium.org/309933002/60001

[commit-bot: I haz the power, 2014-06-30 23:21:23]

Change committed as 177248