DevTools: introduce multitarget model listeners

Source/devtools/front_end/sdk/HeapProfilerModel.js

Index: Source/devtools/front_end/sdk/HeapProfilerModel.js
diff --git a/Source/devtools/front_end/sdk/HeapProfilerModel.js b/Source/devtools/front_end/sdk/HeapProfilerModel.js
index 0c9b64d9d99dd326c1f47e119d4cab8045f5ebc9..363b49545ad93616989136bb348e89c396dab54b 100644
--- a/Source/devtools/front_end/sdk/HeapProfilerModel.js
+++ b/Source/devtools/front_end/sdk/HeapProfilerModel.js
@@ -1,11 +1,11 @@
 /**
  * @constructor
- * @extends {WebInspector.SDKObject}
+ * @extends {WebInspector.SDKModel}
  * @param {!WebInspector.Target} target
  */
 WebInspector.HeapProfilerModel = function(target)
 {
-    WebInspector.SDKObject.call(this, target);
+    WebInspector.SDKModel.call(this, WebInspector.HeapProfilerModel, target);
     target.registerHeapProfilerDispatcher(new WebInspector.HeapProfilerDispatcher(this));
     this._enabled = false;
     this._heapProfilerAgent = target.heapProfilerAgent();
@@ -70,7 +70,7 @@ WebInspector.HeapProfilerModel.prototype = {
         this.dispatchEventToListeners(WebInspector.HeapProfilerModel.Events.ResetProfiles);
     },
 
-    __proto__: WebInspector.SDKObject.prototype
+    __proto__: WebInspector.SDKModel.prototype
 }