[Mac] Support windowless Flash plugin rendering directly to the context for single-process apps

Windowless Flash plugins on Mac do not currently draw in single-process applications using the Chromium WebKit API because the current design assumes a multi-process implementation and requires a buffer context. Add a new flag to indicate no buffer context will be used and change WebPluginDelegateImpl::WindowlessPaint() to paint directly to the window context when this flag is set. Also change test_shell to force Flash plugins to run in windowless mode by setting the wmode="opaque" attribute.

BUG=94395
TEST=load Flash plugin in test_shell

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=98571

[Marshall, 2011-08-25 01:10:10]

Mark: please review
Jam: FYI

[Mark Mentovai, 2011-08-25 13:21:20]

I think this is tolerable. LGTM.

[Mark Mentovai, 2011-08-25 13:22:31]

Please file a bug for this and provide a real BUG= line in your checkin comment.
Someone in the future may want to look at a bug to figure out what’s going on.
If there’s any additional information you want to provide beyond what your
checkin comment says (might be a good idea), please put it on that bug.

[Marshall, 2011-08-25 13:38:43]

On 2011/08/25 13:22:31, Mark Mentovai wrote:
> Please file a bug for this and provide a real BUG= line in your checkin
comment.
> Someone in the future may want to look at a bug to figure out what’s going on.
> If there’s any additional information you want to provide beyond what your
> checkin comment says (might be a good idea), please put it on that bug.

Thanks. I'll do this and also update the patch with test_shell changes.

[Marshall, 2011-08-26 15:04:48]

Mark: Please review test_shell changes.
Jam: FYI.

[Mark Mentovai, 2011-08-26 15:45:48]

LGTM

[commit-bot: I haz the power, 2011-08-27 21:07:02]

Change committed as 98571