[Qt][WK2] Event delivery in QDesktopWebView is broken after merge of Qt5 refactor

[Qt][WK2] Event delivery in QDesktopWebView is broken after merge of Qt5 refactor
https://bugs.webkit.org/show_bug.cgi?id=69105

This changes QDesktopWebView and QDesktopWebPageProxy to use QMouseEvent instead
of QGraphicsSceneMouseEvent.
Further it removes an endless loop introduced by the QSGItem::event() function
delivering inputMethodEvents but no other events.

Patch by Zeno Albisser <zeno.albisser@nokia.com> on 2011-09-30
Reviewed by Andreas Kling.

* Shared/NativeWebMouseEvent.h:
(WebKit::NativeWebMouseEvent::nativeEvent):
* Shared/NativeWebWheelEvent.h:
(WebKit::NativeWebWheelEvent::nativeEvent):
* Shared/qt/NativeWebMouseEventQt.cpp:
(WebKit::NativeWebMouseEvent::NativeWebMouseEvent):
* Shared/qt/NativeWebWheelEventQt.cpp:
(WebKit::NativeWebWheelEvent::NativeWebWheelEvent):
* Shared/qt/WebEventFactoryQt.cpp:
(WebKit::mouseButtonForEvent):
(WebKit::webEventTypeForEvent):
(WebKit::WebEventFactory::createWebMouseEvent):
(WebKit::WebEventFactory::createWebWheelEvent):
* Shared/qt/WebEventFactoryQt.h:
* UIProcess/API/qt/qdesktopwebview.cpp:
(QDesktopWebView::mousePressEvent):
(QDesktopWebView::mouseMoveEvent):
(QDesktopWebView::mouseReleaseEvent):
(QDesktopWebView::mouseDoubleClickEvent):
(QDesktopWebView::wheelEvent):
(QDesktopWebView::event):
* UIProcess/API/qt/qdesktopwebview.h:
* UIProcess/qt/qdesktopwebpageproxy.cpp:
(QDesktopWebPageProxy::handleEvent):
(QDesktopWebPageProxy::handleMouseMoveEvent):
(QDesktopWebPageProxy::handleMousePressEvent):
(QDesktopWebPageProxy::handleMouseReleaseEvent):
(QDesktopWebPageProxy::handleMouseDoubleClickEvent):
(QDesktopWebPageProxy::handleWheelEvent):
(QDesktopWebPageProxy::handleHoverMoveEvent):
* UIProcess/qt/qdesktopwebpageproxy.h:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@96399 268f45cc-cd09-0410-ab3c-d52691b4dbfc