Image filters: Replace all use of tryAllocPixels() with createDevice().

Image filters: Replace all use of tryAllocPixels() with createDevice().

In order to have a central pinch point for bitmap allocation, change all
filters to use Proxy::createDevice() instead of allocating memory
directly with SkBitmap::tryAllocPixels().

This will aid in moving filter backing stores and caches to
discardable memory.

BUG=skia:

Committed: https://skia.googlesource.com/skia/+/1d3ff434954189e194c468f429598465146dcf4b

[Stephen White, 2015-10-20 16:08:42]

Description was changed from

==========
Image filters: Replace all use of tryAllocPixels() with createDevice().

In order to have a central pinch point for bitmap allocation, change all
filters to use Proxy::createDevice() instead of allocating memory
directly with SkBitmap::tryAllocPixels().

This will aid in moving filter backing stores and caches to
discardable memory.

BUG=skia:
==========

to

==========
Image filters: Replace all use of tryAllocPixels() with createDevice().

In order to have a central pinch point for bitmap allocation, change all
filters to use Proxy::createDevice() instead of allocating memory
directly with SkBitmap::tryAllocPixels().

This will aid in moving filter backing stores and caches to
discardable memory.

BUG=skia:
==========

[Stephen White, 2015-10-20 16:08:42]

senorblanco@chromium.org changed reviewers:
+ mtklein@google.com

[mtklein, 2015-10-20 16:24:01]

lgtm

[mtklein, 2015-10-20 16:24:09]

The CQ bit was checked by mtklein@google.com to run a CQ dry run

[commit-bot: I haz the power, 2015-10-20 16:24:13]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1414843003/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1414843003/20001

[Stephen White, 2015-10-20 16:31:58]

The CQ bit was checked by senorblanco@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2015-10-20 16:32:07]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1414843003/40001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1414843003/40001

[commit-bot: I haz the power, 2015-10-20 16:49:42]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-10-20 16:49:43]

Dry run: This issue passed the CQ dry run.

[Stephen White, 2015-10-20 17:16:42]

The CQ bit was checked by senorblanco@chromium.org

[Stephen White, 2015-10-20 17:16:42]

The patchset sent to the CQ was uploaded after l-g-t-m from mtklein@google.com
Link to the patchset: https://codereview.chromium.org/1414843003/#ps40001
(title: "Fix morphology: don't allocate dest or temp until we need them")

[commit-bot: I haz the power, 2015-10-20 17:16:49]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1414843003/40001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1414843003/40001

[commit-bot: I haz the power, 2015-10-20 17:17:36]

Committed patchset #3 (id:40001) as
https://skia.googlesource.com/skia/+/1d3ff434954189e194c468f429598465146dcf4b