Revert of Make GrGammaEffect have explicit sRGB modes, plus exponential mode.

Revert of Make GrGammaEffect have explicit sRGB modes, plus exponential mode. (patchset #4 id:60001 of https://codereview.chromium.org/1954863002/ )

Reason for revert:
Shader compilation appears to be failing

Original issue's description:
> Make GrGammaEffect have explicit sRGB modes, plus exponential mode.
> 
> Convert it to a "standard" FP that just transforms the input color.
> 
> For now, we still infer the sRGB transfer curves from the exponent,
> but I'm hoping that eventually SkGammas will provide us with the
> exact curve we're supposed to be applying. In any case, this adds
> support for doing the inverse transformation, as well, which will
> be needed in an upcoming Vulkan YUV change, among other things.
> 
> BUG=skia:
> GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1954863002
> 
> Committed: https://skia.googlesource.com/skia/+/2139303e4c0a9cbcfac695977a80eb026a9296ab

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

Committed: https://skia.googlesource.com/skia/+/3e11da7fa9b7ab26df6d6197c3f6a71d0826c97e

[robertphillips, 2016-05-11 12:17:24]

Created Revert of Make GrGammaEffect have explicit sRGB modes, plus exponential
mode.

[commit-bot: I haz the power, 2016-05-11 12:17:33]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1964943003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1964943003/1

[commit-bot: I haz the power, 2016-05-11 12:17:38]

Description was changed from

==========
Revert of Make GrGammaEffect have explicit sRGB modes, plus exponential mode.
(patchset #4 id:60001 of https://codereview.chromium.org/1954863002/ )

Reason for revert:
Shader compilation appears to be failing

Original issue's description:
> Make GrGammaEffect have explicit sRGB modes, plus exponential mode.
> 
> Convert it to a "standard" FP that just transforms the input color.
> 
> For now, we still infer the sRGB transfer curves from the exponent,
> but I'm hoping that eventually SkGammas will provide us with the
> exact curve we're supposed to be applying. In any case, this adds
> support for doing the inverse transformation, as well, which will
> be needed in an upcoming Vulkan YUV change, among other things.
> 
> BUG=skia:
> GOLD_TRYBOT_URL=
https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&is...
> 
> Committed:
https://skia.googlesource.com/skia/+/2139303e4c0a9cbcfac695977a80eb026a9296ab

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

to

==========
Revert of Make GrGammaEffect have explicit sRGB modes, plus exponential mode.
(patchset #4 id:60001 of https://codereview.chromium.org/1954863002/ )

Reason for revert:
Shader compilation appears to be failing

Original issue's description:
> Make GrGammaEffect have explicit sRGB modes, plus exponential mode.
> 
> Convert it to a "standard" FP that just transforms the input color.
> 
> For now, we still infer the sRGB transfer curves from the exponent,
> but I'm hoping that eventually SkGammas will provide us with the
> exact curve we're supposed to be applying. In any case, this adds
> support for doing the inverse transformation, as well, which will
> be needed in an upcoming Vulkan YUV change, among other things.
> 
> BUG=skia:
> GOLD_TRYBOT_URL=
https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&is...
> 
> Committed:
https://skia.googlesource.com/skia/+/2139303e4c0a9cbcfac695977a80eb026a9296ab

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

Committed:
https://skia.googlesource.com/skia/+/3e11da7fa9b7ab26df6d6197c3f6a71d0826c97e
==========

[commit-bot: I haz the power, 2016-05-11 12:17:39]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/3e11da7fa9b7ab26df6d6197c3f6a71d0826c97e