Deflake fast/css-generated-content/malformed-url.html

Deflake fast/css-generated-content/malformed-url.html

This test was flaky because it would sometimes print the url of the blocked
resource and sometimes not depending on when the navigation happened.

Instead we should wait for onload so that the url is always printed.

TBR=ojan@chromium.org

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=170710

[esprehn, 2014-04-02 21:27:32]

The CQ bit was checked by esprehn@chromium.org

[commit-bot: I haz the power, 2014-04-02 21:27:41]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/esprehn@chromium.org/221743006/1

[commit-bot: I haz the power, 2014-04-02 21:38:16]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2014-04-02 21:38:17]

Try jobs failed on following builders:
  tryserver.blink on win_blink_compile_dbg

[esprehn, 2014-04-02 21:41:41]

The CQ bit was checked by esprehn@chromium.org

[commit-bot: I haz the power, 2014-04-02 21:41:44]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/esprehn@chromium.org/221743006/1

[commit-bot: I haz the power, 2014-04-02 22:35:14]

Change committed as 170710