Close all sources command

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

 {
     "extensions": [
         {
             "type": "@WebInspector.PanelFactory",
             "name": "sources",
             "title": "Sources",
             "order": 30,
             "className": "WebInspector.SourcesPanelFactory"
         },
         {
@@ skipping 314 matching lines @@
             "persistence": "temporary",
             "className": "WebInspector.RevisionHistoryView"
         },
         {
             "type": "drawer-view",
             "name": "sources.quick",
             "title": "Quick source",
             "persistence": "closeable",
             "order": 1000,
             "className": "WebInspector.SourcesPanel.WrapperView"
+        },
+        {
+            "type": "@WebInspector.ActionDelegate",
+            "category": "Sources",
+            "actionId": "sources.close-all",
+            "className": "WebInspector.SourcesView.CloseAllActionDelegate",
+            "title": "Close All"
         }
     ],
     "dependencies": [
         "components",
         "source_frame",
         "snippets",
         "ui_lazy",
         "extensions"
     ],
     "scripts": [
@@ skipping 38 matching lines @@
         "addSourceMapURLDialog.css",
         "uiList.css",
         "navigatorView.css",
         "revisionHistory.css",
         "serviceWorkersSidebar.css",
         "sourcesPanel.css",
         "sourcesSearch.css",
         "sourcesView.css"
     ]
 }