Devtools: [CustomFormatter] Add context menu to disassemble custom previews

Source/devtools/front_end/resources/ServiceWorkerCacheViews.js

Index: Source/devtools/front_end/resources/ServiceWorkerCacheViews.js
diff --git a/Source/devtools/front_end/resources/ServiceWorkerCacheViews.js b/Source/devtools/front_end/resources/ServiceWorkerCacheViews.js
index 6116465fe7807cb718f94578ac66cb20fd121557..38cafb919e169de4662d9621aa44499318dbb2c4 100644
--- a/Source/devtools/front_end/resources/ServiceWorkerCacheViews.js
+++ b/Source/devtools/front_end/resources/ServiceWorkerCacheViews.js
@@ -187,7 +187,8 @@ WebInspector.SWCacheDataGridNode.prototype = {
         case "request":
         case "response":
             cell.removeChildren();
-            this._formatValue(cell, value);
+            var objectElement = WebInspector.ObjectPropertiesSection.defaultObjectPresentation(value, true);
+            cell.appendChild(objectElement);
             break;
         default:
         }
@@ -195,12 +196,5 @@ WebInspector.SWCacheDataGridNode.prototype = {
         return cell;
     },
 
-    _formatValue: function(cell, value)
-    {
-        cell.classList.add("source-code");
-        cell.classList.add("primitive-value");
-        cell.appendChild(createTextNode(value));
-    },
-
     __proto__: WebInspector.DataGridNode.prototype
 }