[Storage] Cache storage inspection on all the frames!

Source/devtools/front_end/sdk/Target.js

Index: Source/devtools/front_end/sdk/Target.js
diff --git a/Source/devtools/front_end/sdk/Target.js b/Source/devtools/front_end/sdk/Target.js
index 078ac8a2994dfe7e765f1ee1d24429c0f1f29c24..cad63bf80a0739dc5710cb8f539446fb7389b240 100644
--- a/Source/devtools/front_end/sdk/Target.js
+++ b/Source/devtools/front_end/sdk/Target.js
@@ -149,11 +149,6 @@ WebInspector.Target.prototype = {
         /** @type {!WebInspector.AnimationModel} */
         this.animationModel = new WebInspector.AnimationModel(this);
 
-        if (this._parentTarget && this._parentTarget.isServiceWorker()) {
-            /** @type {!WebInspector.ServiceWorkerCacheModel} */
-            this.serviceWorkerCacheModel = new WebInspector.ServiceWorkerCacheModel(this);
-        }
-
         this.tracingManager = new WebInspector.TracingManager(this);
 
         if (this.isPage() && (Runtime.experiments.isEnabled("serviceWorkersInPageFrontend") || Runtime.experiments.isEnabled("serviceWorkersInResources")))
@@ -232,8 +227,7 @@ WebInspector.Target.prototype = {
         this.debuggerModel.dispose();
         this.networkManager.dispose();
         this.cpuProfilerModel.dispose();
-        if (this.serviceWorkerCacheModel)
-            this.serviceWorkerCacheModel.dispose();
+        WebInspector.ServiceWorkerCacheModel.fromTarget(this).dispose();
         if (this.workerManager)
             this.workerManager.dispose();
     },