Ensure static BrowserContext methods only get called on the UI thread.

Ensure static BrowserContext methods only get called on the UI thread. Also ensure ResourceContext methods only get called on the IO thread.
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=145944

[awong, 2012-07-10 17:42:55]

LGTM

though the stdio test is still failing with this patch. Since this was happening
with my CL as well, I wonder if it's a real error.

[awong, 2012-07-10 17:43:23]

I mean the "Empty" test, not stdio.

On 2012/07/10 17:42:55, awong wrote:
> LGTM
> 
> though the stdio test is still failing with this patch. Since this was
happening
> with my CL as well, I wonder if it's a real error.

[jam, 2012-07-10 18:03:33]

On 2012/07/10 17:43:23, awong wrote:
> I mean the "Empty" test, not stdio.
> 
> On 2012/07/10 17:42:55, awong wrote:
> > LGTM
> > 
> > though the stdio test is still failing with this patch. Since this was
> happening
> > with my CL as well, I wonder if it's a real error.

yep, it's real. I had only run content_unittests locally and was depending on
the trybot for the rest :)

the waterfall view of the try output is not very helpful sometimes, so clicking
on the error is what shows which test failed. fixed.

[awong, 2012-07-10 18:09:50]

LGTM++