DevTools: Rename WebInspector.DOMAgent into WebInspector.DOMModel

Source/devtools/front_end/Target.js

Index: Source/devtools/front_end/Target.js
diff --git a/Source/devtools/front_end/Target.js b/Source/devtools/front_end/Target.js
index 701c6435bc4cc544d1e230437509517d6f425c3b..2ed9f5be5608ef4dc3b408a5e522e0a9a4387154 100644
--- a/Source/devtools/front_end/Target.js
+++ b/Source/devtools/front_end/Target.js
@@ -57,10 +57,9 @@ WebInspector.Target.prototype = {
         if (!WebInspector.runtimeModel)
             WebInspector.runtimeModel = this.runtimeModel;
 
-        //we can't name it domAgent, because it clashes with function, WebInspector.DOMAgent should be renamed to DOMModel
-        this.domModel = new WebInspector.DOMAgent();
-        if (!WebInspector.domAgent)
-            WebInspector.domAgent = this.domModel;
+        this.domModel = new WebInspector.DOMModel();
+        if (!WebInspector.domModel)
+            WebInspector.domModel = this.domModel;
 
         this.workerManager = new WebInspector.WorkerManager(this, this.isMainFrontend);
         if (!WebInspector.workerManager)