Rename "tree of trees" to "composed tree".

third_party/WebKit/LayoutTests/fast/dom/shadow/resources/event-dispatching.js

 var defaultPaddingSize = 40;
 
 function moveMouseOver(element)
 {
     if (!window.eventSender || !window.internals)
         return;
 
     var x = element.offsetLeft + element.offsetWidth / 2;
     var y;
     if (element.hasChildNodes() || window.internals.shadowRoot(element))
@@ skipping 101 matching lines @@
          result += ids[i];
          if (i != ids.length - 1)
              result += ', ';
     }
     return result;
 }
 
 function addEventListeners(nodes)
 {
     for (var i = 0; i < nodes.length; ++i) {
-        addEventListenersToNode(getNodeInTreeOfTrees(nodes[i]));
+        addEventListenersToNode(getNodeInComposedTree(nodes[i]));
     }
 }
 
 function addEventListenersToNode(node)
 {
     node.addEventListener('click', recordEvent, false);
     node.addEventListener('dragstart', recordEvent, false);
     node.addEventListener('mouseout', recordEvent, false);
     node.addEventListener('mouseover', recordEvent, false);
     node.addEventListener('mousewheel', recordEvent, false);
@@ skipping 14 matching lines @@
 
 function sortDispatchedEvent(eventType)
 {
     dispatchedEvent(eventType).sort();
 }
 
 function moveMouse(oldElementId, newElementId)
 {
     clearEventRecords();
     debug('\n' + 'Moving mouse from ' + oldElementId + ' to ' + newElementId);
-    moveMouseOver(getNodeInTreeOfTrees(oldElementId));
+    moveMouseOver(getNodeInComposedTree(oldElementId));
 
     clearEventRecords();
-    moveMouseOver(getNodeInTreeOfTrees(newElementId));
+    moveMouseOver(getNodeInComposedTree(newElementId));
 
     debugDispatchedEvent('mouseout');
     debugDispatchedEvent('mouseover');
 }
 
 function clickElement(elementId)
 {
     clearEventRecords();
     debug('\n' + 'Click ' + elementId);
     var clickEvent = document.createEvent("MouseEvents");
     clickEvent.initMouseEvent('click', true, false, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null);
-    getNodeInTreeOfTrees(elementId).dispatchEvent(clickEvent);
+    getNodeInComposedTree(elementId).dispatchEvent(clickEvent);
     debugDispatchedEvent('click');
 }
 
 function showSandboxTree()
 {
     var sandbox = document.getElementById('sandbox');
     sandbox.offsetLeft;
     debug('\n\nFlat Tree will be:\n' + dumpFlatTree(sandbox));
 }