https://bugs.webkit.org/show_bug.cgi?id=120323

Reviewed by Anders Carlsson.

* WebCoreSupport/WebFrameLoaderClient.cpp:
(WebFrameLoaderClient::WebFrameLoaderClient): Remove assertion that frame
is passed as construction argument.
(WebFrameLoaderClient::createFrame): Call new 'createSubframeWithOwnerElement'
* WebCoreSupport/WebFrameLoaderClient.h: Update constructor to
handle case of no default frame argument.
(WebFrameLoaderClient::setWebFrame): Added.
* WebFrame.cpp:
(WebFrame::createSubframeWithOwnerElement): Renamed from 'init'.
(WebFrame::initWithWebFrameView): Added for new page-driven load path.
* WebFrame.h: Added new method signatures.
* WebView.cpp:
(WebView::initWithFrame): Update to match behavior of other ports.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@154631 268f45cc-cd09-0410-ab3c-d52691b4dbfc