Merge 105212 - Crash in in WebCore::EventHandler::mouseMoved.

Source/WebCore/page/EventHandler.cpp

Index: Source/WebCore/page/EventHandler.cpp
===================================================================
--- Source/WebCore/page/EventHandler.cpp	(revision 105775)
+++ Source/WebCore/page/EventHandler.cpp	(working copy)
@@ -1556,6 +1556,8 @@
 
 bool EventHandler::mouseMoved(const PlatformMouseEvent& event, bool onlyUpdateScrollbars)
 {
+    RefPtr<FrameView> protector(m_frame->view());
+
     HitTestResult hoveredNode = HitTestResult(LayoutPoint());
     bool result = handleMouseMoveEvent(event, &hoveredNode, onlyUpdateScrollbars);