[EFL][WK2] Add vibration client

[EFL][WK2] Add vibration client
https://bugs.webkit.org/show_bug.cgi?id=91371

Patch by Sudarsana Nagineni <sudarsana.nagineni@linux.intel.com> on 2012-07-24
Reviewed by Antonio Gomes.

Implement Vibration provider for WebKit2 EFL and add an API to set
vibration client callbacks by application to handle the tactile
feedback in the application when the page content ask for vibration.

* CMakeLists.txt: Add WebCore/Modules/vibration to include path.
* PlatformEfl.cmake: Add VibrationProvider.cpp file to the build
system.
* UIProcess/API/efl/VibrationProvider.cpp: Added.
(_Ewk_Vibration_Client): Structure contains the vibration client
callbacks.
(_Ewk_Vibration_Client::_Ewk_Vibration_Client):
(toVibrationProvider): Helper function to cast the clientinfo to
VibrationProvider.
(vibrateCallback):
(cancelVibrationCallback):
(VibrationProvider::create):
(VibrationProvider::VibrationProvider):
(VibrationProvider::~VibrationProvider):
(VibrationProvider::vibrate):
(VibrationProvider::cancelVibration):
(VibrationProvider::setVibrationClientCallbacks):
* UIProcess/API/efl/VibrationProvider.h: Added.
(VibrationProvider):
* UIProcess/API/efl/ewk_context.cpp:
(_Ewk_Context):
(createDefaultEwkContext):
(ewk_context_vibration_client_callbacks_set): API to set vibration
client callbacks.
* UIProcess/API/efl/ewk_context.h:

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@123482 268f45cc-cd09-0410-ab3c-d52691b4dbfc