Enable webkit_compositor_bindings_unittests in component builds

Enable webkit_compositor_bindings_unittests in component builds

This shares the compositor setup code from cc_unittests so we can run
webkit_compositor_bindings_unittests in component builds.

BUG=


Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=157416

[enne (OOO), 2012-09-17 21:10:01]

LGTM

[commit-bot: I haz the power, 2012-09-18 01:31:51]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/jamesr@chromium.org/10918281/1

[commit-bot: I haz the power, 2012-09-18 01:47:59]

Retried try job too often for step(s) interactive_ui_tests, jingle_unittests,
gpu_unittests, base_unittests, sync_integration_tests, sql_unittests,
chrome_frame_unittests, content_unittests, safe_browsing_tests, ipc_tests,
mini_installer_test, cacheinvalidation_unittests, remoting_unittests,
browser_tests, net_unittests, installer_util_unittests, chrome_frame_net_tests,
check_deps, crypto_unittests, unit_tests, nacl_integration, media_unittests,
content_browsertests, printing_unittests, sync_unit_tests

[commit-bot: I haz the power, 2012-09-18 18:03:59]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/jamesr@chromium.org/10918281/1

[commit-bot: I haz the power, 2012-09-18 20:58:28]

Change committed as 157416