Add back in compressed_textures sample.

Add back in compressed_textures sample.

This used to be in gpu/command_buffer/client/gles2_demo_cc.cc
but was accidentally deleted in r101545. You can view it here
http://src.chromium.org/viewvc/chrome/trunk/src/gpu/command_buffer/client/gles2_demo_cc.cc?view=log&pathrev=101544

I need this for testing compressed texture support in ANGLE

TEST=none
BUG=none

R=jbates@chromium.org


Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=112632

[greggman, 2011-12-01 01:20:23]

Hey John, here's another.

I don't know if it needs to follow every code style rule. It's just a sample we
use from time to time to test the graphics.

I will need to modify it after this CL to try some other sizes because there is
a crash bug in ANGLE.

[jbates, 2011-12-01 17:45:28]

lgtm

[commit-bot: I haz the power, 2011-12-01 23:14:06]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/gman@chromium.org/8764010/4001

[commit-bot: I haz the power, 2011-12-01 23:33:56]

Try job failure for 8764010-4001 on win_rel for step "update".
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=win_rel&nu...

Step "update" is always a major failure.
Look at the try server FAQ for more details.

[commit-bot: I haz the power, 2011-12-01 23:45:32]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/gman@chromium.org/8764010/4001

[commit-bot: I haz the power, 2011-12-02 03:53:27]

Change committed as 112632