Hide symbols in S32A_Opaque_BlitRow32_SSE4

Hide symbols in S32A_Opaque_BlitRow32_SSE4

Marks the symbols in the S32A_Opaque_BlitRow32_SSE4 files as hidden,
so Chromium can build.
Also enables the optimizations.

Signed-off-by: Henrik Smiding <henrik.smiding@intel.com>;

Committed: https://skia.googlesource.com/skia/+/4a2489f7bbaccfe588597193561526d579004653

[mtklein, 2014-07-01 12:56:56]

lgtm

[commit-bot: I haz the power, 2014-07-01 12:57:26]

CQ is trying da patch. Follow status at
 https://skia-tree-status.appspot.com/cq/henrik.smiding@intel.com/368573002/1

[commit-bot: I haz the power, 2014-07-01 13:12:53]

Change committed as 4a2489f7bbaccfe588597193561526d579004653

[bungeman-skia, 2014-07-01 15:45:44]

On 2014/07/01 13:12:53, I haz the power (commit-bot) wrote:
> Change committed as 4a2489f7bbaccfe588597193561526d579004653

I think this might be causing issues with Chrome on Mac, see
http://build.chromium.org/p/tryserver.blink/builders/mac_blink_rel/builds/13793
.

[mtklein, 2014-07-01 15:48:31]

On 2014/07/01 15:45:44, bungeman1 wrote:
> On 2014/07/01 13:12:53, I haz the power (commit-bot) wrote:
> > Change committed as 4a2489f7bbaccfe588597193561526d579004653
> 
> I think this might be causing issues with Chrome on Mac, see
>
http://build.chromium.org/p/tryserver.blink/builders/mac_blink_rel/builds/13793
> .

It's fine.  We're rolling it with GYP changes Ben doesn't have.

[tomhudson, 2014-07-02 18:49:38]

Reopening. There may still be a problem here; this change seems to be implicated
in http://crbug.com/391016?