DevTools: Introduce Target class which holds connection & models

Source/devtools/front_end/RuntimeModel.js

Index: Source/devtools/front_end/RuntimeModel.js
diff --git a/Source/devtools/front_end/RuntimeModel.js b/Source/devtools/front_end/RuntimeModel.js
index 9c0a61f55719b33a442a5b41a3cc6198619fccf2..0e42d2eca8b9fcf0b517c6508962848c10350ea0 100644
--- a/Source/devtools/front_end/RuntimeModel.js
+++ b/Source/devtools/front_end/RuntimeModel.js
@@ -31,17 +31,18 @@
 /**
  * @constructor
  * @extends {WebInspector.Object}
- * @param {!WebInspector.ResourceTreeModel} resourceTreeModel
+ * @param {!WebInspector.Target} target
  */
-WebInspector.RuntimeModel = function(resourceTreeModel)
+WebInspector.RuntimeModel = function(target)
 {
-    this._agent = RuntimeAgent;
-    this._debuggerModel = WebInspector.debuggerModel;
-    resourceTreeModel.addEventListener(WebInspector.ResourceTreeModel.EventTypes.FrameAdded, this._frameAdded, this);
-    resourceTreeModel.addEventListener(WebInspector.ResourceTreeModel.EventTypes.FrameNavigated, this._frameNavigated, this);
-    resourceTreeModel.addEventListener(WebInspector.ResourceTreeModel.EventTypes.FrameDetached, this._frameDetached, this);
-    resourceTreeModel.addEventListener(WebInspector.ResourceTreeModel.EventTypes.CachedResourcesLoaded, this._didLoadCachedResources, this);
+    this._agent = target.connection.agent("Runtime");
+    this._debuggerModel = target.debuggerModel;
+    target.resourceTreeModel.addEventListener(WebInspector.ResourceTreeModel.EventTypes.FrameAdded, this._frameAdded, this);
+    target.resourceTreeModel.addEventListener(WebInspector.ResourceTreeModel.EventTypes.FrameNavigated, this._frameNavigated, this);
+    target.resourceTreeModel.addEventListener(WebInspector.ResourceTreeModel.EventTypes.FrameDetached, this._frameDetached, this);
+    target.resourceTreeModel.addEventListener(WebInspector.ResourceTreeModel.EventTypes.CachedResourcesLoaded, this._didLoadCachedResources, this);
     this._frameIdToContextList = {};
+    target.connection.registerDispatcher("Runtime", new WebInspector.RuntimeDispatcher(this));
 }
 
 WebInspector.RuntimeModel.Events = {
@@ -120,7 +121,6 @@ WebInspector.RuntimeModel.prototype = {
 
     _didLoadCachedResources: function()
     {
-        InspectorBackend.registerRuntimeDispatcher(new WebInspector.RuntimeDispatcher(this));
         this._agent.enable();
     },