DevTools: add coverage snapshots

third_party/WebKit/Source/devtools/front_end/coverage/module.json

Index: third_party/WebKit/Source/devtools/front_end/coverage/module.json
diff --git a/third_party/WebKit/Source/devtools/front_end/coverage/module.json b/third_party/WebKit/Source/devtools/front_end/coverage/module.json
index f1e0575d93c04528fec1fa12fa1a3b34d5c024f0..8e296828abf22e23de9da972de3f5e69db4efe3c 100644
--- a/third_party/WebKit/Source/devtools/front_end/coverage/module.json
+++ b/third_party/WebKit/Source/devtools/front_end/coverage/module.json
@@ -17,11 +17,20 @@
         },
         {
             "type": "@UI.ActionDelegate",
+            "actionId": "coverage.take-snapshot",
+            "iconClass": "largeicon-photo-camera",
+            "className": "Coverage.CoverageView.ActionDelegate",
+            "category": "Performance",
+            "experiment": "cssTrackerPanel",
+            "title": "Take a best-effort coverage snapshot"
+        },
+        {
+            "type": "@UI.ActionDelegate",
             "actionId": "coverage.toggle-recording",
             "iconClass": "largeicon-start-recording",
             "toggledIconClass": "largeicon-stop-recording",
             "toggleWithRedColor": true,
-            "className": "Coverage.CoverageView.RecordActionDelegate",
+            "className": "Coverage.CoverageView.ActionDelegate",
             "category": "Performance",
             "experiment": "cssTrackerPanel",
             "options": [