[EFL] Add PageClientEfl to WebCoreSupport.

[EFL] Add PageClientEfl to WebCoreSupport.
https://bugs.webkit.org/show_bug.cgi?id=80748

Patch by Hyowon Kim <hw1008.kim@samsung.com> on 2012-03-22
Reviewed by Noam Rosenthal.

Source/WebCore:

* platform/Widget.h: Use PageClientEfl as type for PlatformPageClient.
(WebCore):
* platform/graphics/efl/GraphicsContext3DPrivate.cpp:
(WebCore::GraphicsContext3DPrivate::createSurface): Change the argument type.
* plugins/efl/PluginViewEfl.cpp:
(WebCore::PluginView::platformGetValue): Use PageClientEfl.

Source/WebKit:

* PlatformEfl.cmake: Add WebCore/platform/graphics/efl to the include path
and PageClientEfl.cpp to the source list.

Source/WebKit/efl:

This patch adds PageClientEfl for implementaion of accelerated compositing.

* WebCoreSupport/ChromeClientEfl.cpp:
(WebCore::ChromeClientEfl::platformPageClient):
* WebCoreSupport/PageClientEfl.cpp: Added.
(WebCore):
(WebCore::PageClientEfl::PageClientEfl):
(WebCore::PageClientEfl::~PageClientEfl):
(WebCore::PageClientEfl::createEvasObjectForAcceleratedCompositing):
Just call ewk_view_accelerated_compositing_object_create().
(WebCore::PageClientEfl::acceleratedCompositingContext):
Just call ewk_view_accelerated_compositing_context_get().
* WebCoreSupport/PageClientEfl.h: Added.
(WebCore):
(PageClientEfl):
(WebCore::PageClientEfl::view): Return ewkView.
* ewk/ewk_private.h:
(WebCore):
(EWKPrivate):
* ewk/ewk_view.cpp:
(_Ewk_View_Private_Data): Add OwnPtr<PageClientEfl>.
(_ewk_view_priv_new): Create a new PageClientEfl.
(ewk_view_accelerated_compositing_object_create): Not implemented.
(ewk_view_accelerated_compositing_context_get): Not implemented.
(EWKPrivate::corePageClient): Return the PageClientEfl pointer.
(EWKPrivate):

Source/WTF:

* wtf/Platform.h: Disable accelerated compositing. It's not ready yet.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@111673 268f45cc-cd09-0410-ab3c-d52691b4dbfc