Rename ShaderType enum to ShaderVisibility

Rename ShaderType enum to ShaderVisibility

Renames ShaderType in GrGLShaderBuilder to ShaderVisibility. It is now
used solely as a bitfield. Methods that previously accepted a single
ShaderType value are split into separate calls:

 - getShader -> vsGetShader, gsGetShader, fsGetShader
 - emiitFunction -> fsEmitFunction
 - appendTextureLookup -> fsAppendTextureLookup

No change in functionality. This is a refactoring to allow us to
separate the vertex/geometry and fragment parts of GrGLShaderBuilder.

Committed: http://code.google.com/p/skia/source/detail?r=11044

[Chris Dalton, 2013-08-30 15:59:07]

PTAL

[bsalomon, 2013-08-30 17:47:55]

lgtm w/ one small request

https://codereview.chromium.org/23826002/diff/1/src/core/SkXfermode.cpp
File src/core/SkXfermode.cpp (right):

https://codereview.chromium.org/23826002/diff/1/src/core/SkXfermode.cpp#newco...
src/core/SkXfermode.cpp:1251: "set_luminance",
nit, can we realign these params?

[Chris Dalton, 2013-08-30 18:22:16]

I addressed the comment, and had to do a rebase since a connflicting patch snuck
in since I uploaded.

https://codereview.chromium.org/23826002/diff/1/src/core/SkXfermode.cpp
File src/core/SkXfermode.cpp (right):

https://codereview.chromium.org/23826002/diff/1/src/core/SkXfermode.cpp#newco...
src/core/SkXfermode.cpp:1251: "set_luminance",
On 2013/08/30 17:47:55, bsalomon wrote:
> nit, can we realign these params?

Done.

[bsalomon, 2013-08-30 18:26:24]

On 2013/08/30 18:22:16, cdalton wrote:
> I addressed the comment, and had to do a rebase since a connflicting patch
snuck
> in since I uploaded.
> 
> https://codereview.chromium.org/23826002/diff/1/src/core/SkXfermode.cpp
> File src/core/SkXfermode.cpp (right):
> 
>
https://codereview.chromium.org/23826002/diff/1/src/core/SkXfermode.cpp#newco...
> src/core/SkXfermode.cpp:1251: "set_luminance",
> On 2013/08/30 17:47:55, bsalomon wrote:
> > nit, can we realign these params?
> 
> Done.

lgtm, will set commit bit

[commit-bot: I haz the power, 2013-08-30 18:26:47]

CQ is trying da patch. Follow status at
https://skia-tree-status.appspot.com/cq/cdalton@nvidia.com/23826002/6001

[commit-bot: I haz the power, 2013-08-30 19:44:13]

Change committed as 11044