Include accelerated_compositing disable flag in about:gpu status

Include accelerated_compositing disable flag in calculation of
about:gpu feature status.

BUG=90723
TEST=Run chrome with --disable-accelerated-compositing, verify about:gpu status is expected

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=95046

[nduca, 2011-07-28 00:09:13]

Quick fix.

I know there was discussion about refactoring this getstate method into
gpu_data_manager. I agree with that, will do it if I can get time to do it.

[Zhenyao Mo, 2011-07-28 20:38:25]

On 2011/07/28 00:09:13, nduca wrote:
> Quick fix.
> 
> I know there was discussion about refactoring this getstate method into
> gpu_data_manager. I agree with that, will do it if I can get time to do it.

LGTM

[nduca, 2011-07-28 20:40:10]

+kbr for OWNERS

[Ken Russell (switch to Gerrit), 2011-07-30 01:06:51]

http://codereview.chromium.org/7523019/diff/1/content/browser/gpu/gpu_blackli...
File content/browser/gpu/gpu_blacklist.cc (right):

http://codereview.chromium.org/7523019/diff/1/content/browser/gpu/gpu_blackli...
content/browser/gpu/gpu_blacklist.cc:795: else if
(disable_accelerated_compositing)
I'm not sure this is correct. Currently if --disable-accelerated-compositing is
passed, WebGL will still run, but use the software readback path for rendering
onscreen. We could certainly change the semantic of the flag but I think this is
not correct as written.

http://codereview.chromium.org/7523019/diff/1/content/browser/gpu/gpu_blackli...
content/browser/gpu/gpu_blacklist.cc:815: "unavailable_off"));
I'm also not sure this one is correct. I'm pretty sure the WebGL implementation
will continue to use multisampling if --disable-accelerated-compositing is
passed.

http://codereview.chromium.org/7523019/diff/1/content/browser/gpu/gpu_blackli...
content/browser/gpu/gpu_blacklist.cc:846: "or command line. This disables all
hardware acceleration.");
Not sure this comment is correct either. It really only disables the accelerated
compositor and (I suppose) 2D canvas.

[nduca, 2011-08-01 22:41:54]

Thanks Ken! Great feedback, new rev uploaded.

[Ken Russell (switch to Gerrit), 2011-08-01 22:53:29]

Thanks for the updates. LGTM