PPAPI: Add console logging methods to pp::InstancePrivate.

PPAPI: Add console logging methods to pp::InstancePrivate.

We didn't want to add them to pp::Instance (since they're not available to NaCl
plugins?), so add them to InstancePrivate. (We can move them to Instance later,
if desired.)

BUG=none
TEST=none


Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=146456

[viettrungluu, 2012-07-11 20:14:28]

Only one of {brettw,yzshen} needed; I just don't know who's around.

[viettrungluu, 2012-07-12 17:27:41]

http://en.wikipedia.org/wiki/Diffusion_of_responsibility

[yzshen1, 2012-07-12 17:45:57]

lgtm

[commit-bot: I haz the power, 2012-07-12 19:36:30]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/viettrungluu@chromium.org/10703146/2002

[commit-bot: I haz the power, 2012-07-12 22:03:19]

Change committed as 146456