Reland http://codereview.chromium.org/8477015

Reland http://codereview.chromium.org/8477015
Landed at r109114, Reverted at r109142

Make it possible to enable/disable specific ppapi tests. Migrate PostMessage tests.

The testcase attribute now can include a 'filter'. If it's omitted, everything works the same as before. This way we can migrate tests over bit-by-bit if we want to. We can also still run the tests manually the same way as before.

This only runs PostMessage testss the new way, and re-enables all oop PostMessage tests that pass on Windows. I can do the other tests in this CL if desired, but it might be easier to land in a few pieces.

BUG=102885
TEST=N/A
TBR=dmichael@chromium.org

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=110248

[commit-bot: I haz the power, 2011-11-15 23:29:40]

No reviewers yet.

[commit-bot: I haz the power, 2011-11-15 23:32:58]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/dmichael@chromium.org/8536031/8001

[commit-bot: I haz the power, 2011-11-16 00:52:18]

Can't apply patch for file ppapi/tests/test_url_loader.cc.
While running patch -p1 --forward --force;
patching file ppapi/tests/test_url_loader.cc
Hunk #1 FAILED at 77.
1 out of 1 hunk FAILED -- saving rejects to file
ppapi/tests/test_url_loader.cc.rej