gpu: CopyTex(Sub)Image must not use BGRA internal format.

gpu: CopyTex(Sub)Image must not use BGRA internal format.

The extensions that add BGRA support add it as a valid parameter for
Tex(Sub)Image (EXT_texture_format_BGRA8888), and for ReadPixels
(EXT_read_format_bgra), but not for CopyTex(Sub)Image. There's no support for
copying from a BGRA buffer to a BGRA texture in any current extension.

BUG=438691
Committed: https://crrev.com/21e9e82a9712755b36ddeaa72932c07c65e2553d
Cr-Commit-Position: refs/heads/master@{#307220}

[dshwang, 2014-12-05 09:45:10]

dongseong.hwang@intel.com changed reviewers:
+ shannonwoods@chromium.org, sievers@chromium.org

[dshwang, 2014-12-05 09:45:10]

@sievers, Could you review?

I realized that CopyTex(Sub)Image must not use BGRA when I try to support BGRA
in ANGLE project. https://chromium-review.googlesource.com/#/c/232922/

@shannonwoods, I reuse your comment in the description.

[no sievers, 2014-12-05 21:10:46]

lgtm

[dshwang, 2014-12-08 10:07:55]

On 2014/12/05 21:10:46, sievers wrote:
> lgtm

Thank you for reviewing!

[dshwang, 2014-12-08 10:07:58]

The CQ bit was checked by dongseong.hwang@intel.com

[commit-bot: I haz the power, 2014-12-08 10:08:57]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/778123002/1

[commit-bot: I haz the power, 2014-12-08 10:45:44]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2014-12-08 10:47:01]

Patchset 1 (id:??) landed as
https://crrev.com/21e9e82a9712755b36ddeaa72932c07c65e2553d
Cr-Commit-Position: refs/heads/master@{#307220}