Initialized variables passed to GL functions. Command buffer now only allows initialized variable...

Initialized variables passed to GL functions. Command buffer now only allows initialized variables unless it is compiled for native-client. We would need to exclude pepper plugins too. For now I have initialized the gpu demo variables.
TBR=gman
Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=93087

[greggman, 2011-07-20 02:02:19]

LGTM

if you know a way to turn this off for Pepper but not for Chrome that would be
great. Many uninitialized variables are lost context crash bugs waiting to
happen.

[alokp, 2011-07-20 19:52:44]

On 2011/07/20 02:02:19, greggman wrote:
> LGTM
> 
> if you know a way to turn this off for Pepper but not for Chrome that would be
> great.

If the asserts for uninitialized variables is debug-only, I do not think it is
too important to disable them for Pepper. But if they are we need to disable
them.