Merge 78077 - 2011-02-08 Dimitri Glazkov <dglazkov@chromium.org>...

Source/WebCore/dom/Node.cpp

Index: Source/WebCore/dom/Node.cpp
===================================================================
--- Source/WebCore/dom/Node.cpp	(revision 78113)
+++ Source/WebCore/dom/Node.cpp	(working copy)
@@ -2839,6 +2839,18 @@
     gNodesDispatchingSimulatedClicks->remove(this);
 }
 
+// FIXME: Once https://bugs.webkit.org/show_bug.cgi?id=52963 lands, this should
+// be greatly improved. See https://bugs.webkit.org/show_bug.cgi?id=54025.
+static Node* pullOutOfShadow(Node* node)
+{
+    Node* outermostShadowBoundary = node;
+    for (Node* n = node; n; n = n->parentOrHostNode()) {
+        if (n->isShadowRoot())
+            outermostShadowBoundary = n->parentOrHostNode();
+    }
+    return outermostShadowBoundary;
+}
+
 bool Node::dispatchMouseEvent(const AtomicString& eventType, int button, int detail,
     int pageX, int pageY, int screenX, int screenY,
     bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, 
@@ -2861,7 +2873,7 @@
     bool swallowEvent = false;
     
     // Attempting to dispatch with a non-EventTarget relatedTarget causes the relatedTarget to be silently ignored.
-    RefPtr<Node> relatedTarget = relatedTargetArg;
+    RefPtr<Node> relatedTarget = pullOutOfShadow(relatedTargetArg);
 
     int adjustedPageX = pageX;
     int adjustedPageY = pageY;