DevTools: Rename WebInspector.DOMAgent into WebInspector.DOMModel

LayoutTests/http/tests/inspector/elements-test.js

 var initialize_ElementTest = function() {
 
 InspectorTest.findNode = function(matchFunction, callback)
 {
     callback = InspectorTest.safeWrap(callback);
     var result = null;
     var pendingRequests = 0;
     function processChildren(node)
     {
         try {
@@ skipping 17 matching lines @@
                 childNode.getChildNodes(processChildren.bind(null, childNode));
             }
         } finally {
             pendingRequests--;
         }
 
         if (!result && !pendingRequests)
             callback(null);
     }
 
-    WebInspector.domAgent.requestDocument(documentRequested.bind(this));
+    WebInspector.domModel.requestDocument(documentRequested.bind(this));
     function documentRequested(doc)
     {
         pendingRequests++;
         doc.getChildNodes(processChildren.bind(null, doc));
     }
 };
 
 InspectorTest.nodeWithId = function(idValue, callback)
 {
     function nodeIdMatches(node)
@@ skipping 462 matching lines @@
         WebInspector.panels.elements.treeOutline._updateModifiedNodes();
         expand(WebInspector.panels.elements.treeOutline);
         callback();
     }
     WebInspector.inspectorView.showPanel("elements");
     InspectorTest.findNode(function() { return false; }, onAllNodesAvailable);
 };
 
 InspectorTest.dumpDOMAgentTree = function(node)
 {
-    if (!WebInspector.domAgent._document)
+    if (!WebInspector.domModel._document)
         return;
 
     function dump(node, prefix)
     {
         InspectorTest.addResult(prefix + node.nodeName());
         prefix = prefix + "    ";
 
         if (node.templateContent())
             dump(node.templateContent(), prefix);
         if (node.importedDocument())
@@ skipping 23 matching lines @@
         var testNode = InspectorTest.expandedNodeWithId(/function\s([^(]*)/.exec(testBody)[1]);
         InspectorTest.addResult("Initial:");
         InspectorTest.dumpElementsTree(testNode);
 
         testBody(undo);
 
         function undo()
         {
             InspectorTest.addResult("Post-action:");
             InspectorTest.dumpElementsTree(testNode);
-            WebInspector.domAgent.undo(redo);
+            WebInspector.domModel.undo(redo);
         }
 
         function redo()
         {
             InspectorTest.addResult("Post-undo (initial):");
             InspectorTest.dumpElementsTree(testNode);
-            WebInspector.domAgent.redo(done);
+            WebInspector.domModel.redo(done);
         }
 
         function done()
         {
             InspectorTest.addResult("Post-redo (action):");
             InspectorTest.dumpElementsTree(testNode);
             next();
         }
     }
     result.toString = function()
@@ skipping 149 matching lines @@
 {
     var rectNames = ["margin", "border", "padding", "content"];
     var rects = window.internals.inspectorHighlightRects(document);
     for (var i = 0; i < rects.length; i++)
     {
         var rectName = (i < rectNames.length ? rectNames[i] : "untitled");
         var rect = rects.item(i);
         output(rectName + " rect is " + rect.width + " x " + rect.height + " at (" + rect.left + ", " + rect.top + ")");
     }
 }