gl_bindings_skia_in_process is missing GenerateMipmap

gl_bindings_skia_in_process is missing GenerateMipmap

Without GenerateMipmap, the gl_bindings_skia_in_process don't work because Skia
fails to intialize the GrContext. With this change, the GrContext intializes
and works properly.

I found this issue when trying to use this code on Android as a backend for Ganesh.

R=kbr@chromium.org

Committed: https://crrev.com/2887002d5e1f0dee4580cdd69a18a06ba64afff6
Cr-Commit-Position: refs/heads/master@{#316591}

[Ken Russell (switch to Gerrit), 2015-02-17 08:59:34]

LGTM

Could you link to a bug describing why this was just found?

How about a test to prevent this from regressing again?

[abarth-chromium, 2015-02-17 16:13:22]

On 2015/02/17 at 08:59:34, kbr wrote:
> Could you link to a bug describing why this was just found?

I added a sentence to the description.  It's not anything mysterious.  I just
tried to use the code and it didn't work.

> How about a test to prevent this from regressing again?

I don't see any testing targets in //ui/gl.  I could add one, but we'd need to
add a dependency to Skia, which doesn't seem right.  I guess this test would be
more of an integration test.  Maybe the best thing is to have that integration
where we consume this code.  That point doesn't quite exist yet because I'm
still experimenting on a branch, but when I land my code, I'll make sure the
integration is exercised.

Thanks!!

[abarth-chromium, 2015-02-17 16:13:25]

lgtm

[abarth-chromium, 2015-02-17 16:13:26]

The CQ bit was checked by abarth@chromium.org

[commit-bot: I haz the power, 2015-02-17 16:14:03]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/930173002/1

[commit-bot: I haz the power, 2015-02-17 17:04:05]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-02-17 17:04:36]

Patchset 1 (id:??) landed as
https://crrev.com/2887002d5e1f0dee4580cdd69a18a06ba64afff6
Cr-Commit-Position: refs/heads/master@{#316591}