[EFL] Add simple implementation of Web Intents

[EFL] Add simple implementation of Web Intents
https://bugs.webkit.org/show_bug.cgi?id=86354

Patch by Christophe Dumez <christophe.dumez@intel.com> on 2012-05-18
Reviewed by Eric Seidel.

.:

Enable WEB_INTENTS flag by default on EFL port.

* Source/cmake/OptionsEfl.cmake:

Source/WebKit:

Add new ewk_intent.* and ewk_intent_request.* files to CMake.

* CMakeLists.txt:
* PlatformEfl.cmake:

Source/WebKit/efl:

Add new EFL wrappers for WebCore's Intent and IntentRequest.
Implement dispatchIntent() in EFL's FrameLoaderClient and emit a new
"intent,new" signal on the frame to notify clients of new intent
requests.

* WebCoreSupport/FrameLoaderClientEfl.cpp:
(WebCore):
(WebCore::FrameLoaderClientEfl::dispatchIntent):
* WebCoreSupport/FrameLoaderClientEfl.h:
(FrameLoaderClientEfl):
* ewk/ewk_frame.cpp:
(ewk_frame_intent_new):
* ewk/ewk_frame.h:
* ewk/ewk_frame_private.h:
* ewk/ewk_intent.cpp: Added.
(_Ewk_Intent):
(ewk_intent_action_get):
(ewk_intent_type_get):
(ewk_intent_data_get):
(ewk_intent_service_get):
(ewk_intent_extra_get):
(ewk_intent_new):
(ewk_intent_free):
* ewk/ewk_intent.h: Added.
* ewk/ewk_intent_private.h: Added.
(WebCore):
* ewk/ewk_intent_request.cpp: Added.
(_Ewk_Intent_Request):
(ewk_intent_request_ref):
(ewk_intent_request_unref):
(ewk_intent_request_intent_get):
(ewk_intent_request_result_post):
(ewk_intent_request_failure_post):
(ewk_intent_request_new):
* ewk/ewk_intent_request.h: Added.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@117551 268f45cc-cd09-0410-ab3c-d52691b4dbfc