Remove gpu support for willUseHWAALines.

Remove gpu support for willUseHWAALines.

By removing willUseHWAALines, we also no long reference the blend opt flag kDisableBlend so it has been removed

BUG=skia:

Committed: https://skia.googlesource.com/skia/+/e6dfba868c19b00562f8c733b9bf37dd4ec9e68c

[bsalomon, 2014-07-28 19:46:05]

https://codereview.chromium.org/423943003/diff/1/src/gpu/gl/GrGpuGL.cpp
File src/gpu/gl/GrGpuGL.cpp (right):

https://codereview.chromium.org/423943003/diff/1/src/gpu/gl/GrGpuGL.cpp#newco...
src/gpu/gl/GrGpuGL.cpp:2169: GL_CALL(Disable(GR_GL_LINE_SMOOTH));
We already disable this in onResetContext. Let's get rid of this whole "if
(lines)" block. We can remove the fSmoothLineEnabled var as well.

[egdaniel, 2014-07-29 13:54:26]

ptal

[bsalomon, 2014-07-29 14:03:54]

lgtm w/ a couple nits.

kAA_GrGLBackendState isn't used anywhere we know of currently. Might as well
rename it to kMSAAEnable_GrGLBackendState since that the one piece of GL state
it relates to now.

https://codereview.chromium.org/423943003/diff/20001/src/gpu/gl/GrGpuGL.cpp
File src/gpu/gl/GrGpuGL.cpp (right):

https://codereview.chromium.org/423943003/diff/20001/src/gpu/gl/GrGpuGL.cpp#n...
src/gpu/gl/GrGpuGL.cpp:2210: kZero_GrBlendCoeff == dstCoeff;
This looks like it'd fit on one line. Maybe the comment, too.

[egdaniel, 2014-07-29 14:31:10]

The CQ bit was checked by egdaniel@google.com

[commit-bot: I haz the power, 2014-07-29 14:31:47]

CQ is trying da patch. Follow status at
 https://skia-tree-status.appspot.com/cq/egdaniel@google.com/423943003/40001

[commit-bot: I haz the power, 2014-07-29 14:51:07]

Change committed as e6dfba868c19b00562f8c733b9bf37dd4ec9e68c

[egdaniel, 2014-07-29 15:51:37]

A revert of this CL has been created in
https://codereview.chromium.org/430493003/ by egdaniel@google.com.

The reason for reverting is: Breaking windows 7 compare gm's.