Revert of Refactoring of GPU NormalMap handling out into its own class

Revert of Refactoring of GPU NormalMap handling out into its own class (patchset #9 id:160001 of https://codereview.chromium.org/2043393002/ )

Reason for revert:
break deps roll

Original issue's description:
> Refactoring of GPU NormalMap handling out into its own class.
> 
> The purpose of this change is to refactor the handling of normal maps out of SkLightingShader, laying the groundwork to eventually allow for multiple normal sources.
> 
> What this CL includes:
> 
> - Created a new 'NormalMapFP', out of the existing normal map reading behavior in LightingFP.
> 
> - Encapsulates this new fragment processor on a new class NormalMapSource.
> 
> - Created a NormalSource abstraction that will interface with SkLightingShader.
> 
> - Adapted SkLightingShader to use the normals from its NormalSource field ON THE GPU SIDE. No changes done to the CPU side yet.
> 
> BUG=skia:
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2043393002
> 
> Committed: https://skia.googlesource.com/skia/+/87b0dd00cf9409c5fc990f5d0bb7c0df837f08da
> Committed: https://skia.googlesource.com/skia/+/a7d1e2a57aef2aa4913d4380646d60bbab761318

TBR=reed@google.com,dvonbeck@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/+/4132de7069b0088665af52ffea3a42b055f51b79

[egdaniel, 2016-06-15 21:28:02]

The CQ bit was checked by egdaniel@google.com

[egdaniel, 2016-06-15 21:28:02]

Created Revert of Refactoring of GPU NormalMap handling out into its own class

[commit-bot: I haz the power, 2016-06-15 21:28:11]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2068983005/1

[commit-bot: I haz the power, 2016-06-15 21:28:20]

Description was changed from

==========
Revert of Refactoring of GPU NormalMap handling out into its own class (patchset
#9 id:160001 of https://codereview.chromium.org/2043393002/ )

Reason for revert:
break deps roll

Original issue's description:
> Refactoring of GPU NormalMap handling out into its own class.
> 
> The purpose of this change is to refactor the handling of normal maps out of
SkLightingShader, laying the groundwork to eventually allow for multiple normal
sources.
> 
> What this CL includes:
> 
> - Created a new 'NormalMapFP', out of the existing normal map reading behavior
in LightingFP.
> 
> - Encapsulates this new fragment processor on a new class NormalMapSource.
> 
> - Created a NormalSource abstraction that will interface with
SkLightingShader.
> 
> - Adapted SkLightingShader to use the normals from its NormalSource field ON
THE GPU SIDE. No changes done to the CPU side yet.
> 
> BUG=skia:
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2043393002
> 
> Committed:
https://skia.googlesource.com/skia/+/87b0dd00cf9409c5fc990f5d0bb7c0df837f08da
> Committed:
https://skia.googlesource.com/skia/+/a7d1e2a57aef2aa4913d4380646d60bbab761318

TBR=reed@google.com,dvonbeck@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 Refactoring of GPU NormalMap handling out into its own class (patchset
#9 id:160001 of https://codereview.chromium.org/2043393002/ )

Reason for revert:
break deps roll

Original issue's description:
> Refactoring of GPU NormalMap handling out into its own class.
> 
> The purpose of this change is to refactor the handling of normal maps out of
SkLightingShader, laying the groundwork to eventually allow for multiple normal
sources.
> 
> What this CL includes:
> 
> - Created a new 'NormalMapFP', out of the existing normal map reading behavior
in LightingFP.
> 
> - Encapsulates this new fragment processor on a new class NormalMapSource.
> 
> - Created a NormalSource abstraction that will interface with
SkLightingShader.
> 
> - Adapted SkLightingShader to use the normals from its NormalSource field ON
THE GPU SIDE. No changes done to the CPU side yet.
> 
> BUG=skia:
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2043393002
> 
> Committed:
https://skia.googlesource.com/skia/+/87b0dd00cf9409c5fc990f5d0bb7c0df837f08da
> Committed:
https://skia.googlesource.com/skia/+/a7d1e2a57aef2aa4913d4380646d60bbab761318

TBR=reed@google.com,dvonbeck@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/+/4132de7069b0088665af52ffea3a42b055f51b79
==========

[commit-bot: I haz the power, 2016-06-15 21:28:21]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/4132de7069b0088665af52ffea3a42b055f51b79