SkPaintFilterCanvas cleanup

SkPaintFilterCanvas cleanup

All external clients have been updated, we can now remove the
transitional kludges.

BUG=skia:4782
R=reed@google.com
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1574303003

Committed: https://skia.googlesource.com/skia/+/61a237e319a63b7ed6d38c2f3cd9b597816c3a46

[f(malita), 2016-01-12 19:55:41]

Description was changed from

==========
SkPaintFilterCanvas cleanup

All external clients have been updated, we can now remove the
transitional kludges.

BUG=skia:4782
R=reed@google.com
==========

to

==========
SkPaintFilterCanvas cleanup

All external clients have been updated, we can now remove the
transitional kludges.

BUG=skia:4782
R=reed@google.com
GOLD_TRYBOT_URL=
https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&is...
==========

[f(malita), 2016-01-12 19:56:53]

The CQ bit was checked by fmalita@chromium.org

[commit-bot: I haz the power, 2016-01-12 19:57:05]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1574303003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1574303003/1

[commit-bot: I haz the power, 2016-01-12 19:57:06]

Note for Reviewers:
The CQ is waiting for an approval.
If you believe that the CL is not ready yet, or if you would like to L-G-T-M
with comments then please uncheck the CQ checkbox.

Waiting for LGTM from valid reviewer(s) till 2016-01-13 01:57 UTC

[reed1, 2016-01-12 19:57:23]

lgtm

[commit-bot: I haz the power, 2016-01-12 20:14:12]

Description was changed from

==========
SkPaintFilterCanvas cleanup

All external clients have been updated, we can now remove the
transitional kludges.

BUG=skia:4782
R=reed@google.com
GOLD_TRYBOT_URL=
https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&is...
==========

to

==========
SkPaintFilterCanvas cleanup

All external clients have been updated, we can now remove the
transitional kludges.

BUG=skia:4782
R=reed@google.com
GOLD_TRYBOT_URL=
https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&is...

Committed:
https://skia.googlesource.com/skia/+/61a237e319a63b7ed6d38c2f3cd9b597816c3a46
==========

[commit-bot: I haz the power, 2016-01-12 20:14:14]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/61a237e319a63b7ed6d38c2f3cd9b597816c3a46