Remove WebContentsView::SetPageTitle function

The titleChanged signal is emitted
in WebContentsDelegateQt::NavigationStateChanged so
We do not need to send this signal in SetPageTitle function any more.

Change-Id: Id9a7efa59caae7aa99a82e840061adb7c5e8832b
Reviewed-by: Jocelyn Turcotte <jocelyn.turcotte@digia.com>
Fix typo in the qquickwebenginehistory headers

hisOTry -> histTOry

Change-Id: I4744721bbd50a76054e38de9578f1f27e92982db
Reviewed-by: Jocelyn Turcotte <jocelyn.turcotte@digia.com>