[UTC][webkit2][Non-ACR][Fix chromium-efl's intercept request API tests]

[UTC][webkit2][Non-ACR][Fix chromium-efl's intercept request API tests]

Some of the tests for chromium-efl's intercept request API had a subtle
timing issue between "title,changed" and "load,finished" callbacks.
In test code we relied on certian order and quantity of those callbacks,
so it broke when "title,changed" behavior was slightly changed due to
reference browser team's request.

Bug: http://suprem.sec.samsung.net/jira/browse/TWF-2500

Change-Id: I3e5ae5e5a928c420833381521f89f0677a5146f5
Signed-off-by: Grzegorz Ludwikowski <g.ludwikowsk@samsung.com>