[EFL] Make ewk_view emit the "load,document,finished" signal.

[EFL] Make ewk_view emit the "load,document,finished" signal.
https://bugs.webkit.org/show_bug.cgi?id=66782

Patch by Raphael Kubo da Costa <kubo@profusion.mobi> on 2011-09-27
Reviewed by Antonio Gomes.

Currently, only ewk_frame emits the "load,document,finished" signal
when FrameLoaderClientEfl::dispatchDidFinishDocumentLoad() calls
ewk_frame_load_document_finished().

However, in some cases it is not even possible to connect to the
"frame,created" signal to properly monitor the
"load,document,finished" signal, as the former is not emitted.
fast/frames/frame-unload-crash.html, for example, has a page with an
iframe inside an iframe, and this innermost iframe does not seem to be
loaded via FrameLoaderClientEfl::createFrame (which calls all the
machinery which then emits the "frame,created" signal).

We now make ewk_frame_load_document_finished() call the newly-created
ewk_view_load_document_finished() function, whose job is to emit the
"load,document,signal" with the frame as its parameter. This way, one
can just connect to the view and make sure all the signals will get
delivered.

* ewk/ewk_frame.cpp:
(ewk_frame_load_document_finished):
* ewk/ewk_private.h:
* ewk/ewk_view.cpp:
(ewk_view_load_document_finished):
* ewk/ewk_view.h:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@96140 268f45cc-cd09-0410-ab3c-d52691b4dbfc