Revert of Retract GrRenderTarget a bit within SkGpuDevice

Revert of Retract GrRenderTarget a bit within SkGpuDevice (patchset #2 id:20001 of https://codereview.chromium.org/1956473002/ )

Reason for revert:
Experimental revert to track down perf regression

Original issue's description:
> Retract GrRenderTarget a bit within SkGpuDevice
> 
> Split off of: https://codereview.chromium.org/1930013002/ ((Mostly) Retract GrRenderTarget from SkGpuDevice)
> 
> GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1956473002
> 
> Committed: https://skia.googlesource.com/skia/+/d215a95882485026d176a81bf58871276b21c89c

TBR=bsalomon@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Committed: https://skia.googlesource.com/skia/+/524484b143e472b3b6bdc8fd7812635f509071a9

[robertphillips, 2016-05-06 14:55:09]

Created Revert of Retract GrRenderTarget a bit within SkGpuDevice

[commit-bot: I haz the power, 2016-05-06 14:55:12]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1954103002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1954103002/1

[commit-bot: I haz the power, 2016-05-06 14:55:22]

Description was changed from

==========
Revert of Retract GrRenderTarget a bit within SkGpuDevice (patchset #2 id:20001
of https://codereview.chromium.org/1956473002/ )

Reason for revert:
Experimental revert to track down perf regression

Original issue's description:
> Retract GrRenderTarget a bit within SkGpuDevice
> 
> Split off of: https://codereview.chromium.org/1930013002/ ((Mostly) Retract
GrRenderTarget from SkGpuDevice)
> 
> GOLD_TRYBOT_URL=
https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&is...
> 
> Committed:
https://skia.googlesource.com/skia/+/d215a95882485026d176a81bf58871276b21c89c

TBR=bsalomon@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
==========

to

==========
Revert of Retract GrRenderTarget a bit within SkGpuDevice (patchset #2 id:20001
of https://codereview.chromium.org/1956473002/ )

Reason for revert:
Experimental revert to track down perf regression

Original issue's description:
> Retract GrRenderTarget a bit within SkGpuDevice
> 
> Split off of: https://codereview.chromium.org/1930013002/ ((Mostly) Retract
GrRenderTarget from SkGpuDevice)
> 
> GOLD_TRYBOT_URL=
https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&is...
> 
> Committed:
https://skia.googlesource.com/skia/+/d215a95882485026d176a81bf58871276b21c89c

TBR=bsalomon@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Committed:
https://skia.googlesource.com/skia/+/524484b143e472b3b6bdc8fd7812635f509071a9
==========

[commit-bot: I haz the power, 2016-05-06 14:55:23]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/524484b143e472b3b6bdc8fd7812635f509071a9