[DevTools] Dedicated frontend for debugging Node.

third_party/WebKit/Source/devtools/front_end/sources/SourcesPanel.js

Index: third_party/WebKit/Source/devtools/front_end/sources/SourcesPanel.js
diff --git a/third_party/WebKit/Source/devtools/front_end/sources/SourcesPanel.js b/third_party/WebKit/Source/devtools/front_end/sources/SourcesPanel.js
index ba2ade0b7863001cbfe64aa2d178a7e7957e8785..85c10d5f8ca67698c9b6bc00d3e87c17ff12dd4d 100644
--- a/third_party/WebKit/Source/devtools/front_end/sources/SourcesPanel.js
+++ b/third_party/WebKit/Source/devtools/front_end/sources/SourcesPanel.js
@@ -117,7 +117,8 @@ Sources.SourcesPanel = class extends UI.Panel {
         SDK.DebuggerModel, SDK.DebuggerModel.Events.GlobalObjectCleared,
         (event) => this._debuggerResumed(/** @type {!SDK.DebuggerModel} */ (event.data)));
     SDK.targetManager.addModelListener(
-        SDK.SubTargetsManager, SDK.SubTargetsManager.Events.PendingTargetAdded, this._pendingTargetAdded, this);
+        SDK.SubTargetsManager, SDK.SubTargetsManager.Events.AvailableNodeTargetsChanged,
+        this._availableNodeTargetsChanged, this);
     new Sources.WorkspaceMappingTip(this, this._workspace);
     Extensions.extensionServer.addEventListener(
         Extensions.ExtensionServer.Events.SidebarPaneAdded, this._extensionSidebarPaneAdded, this);
@@ -170,7 +171,7 @@ Sources.SourcesPanel = class extends UI.Panel {
   targetRemoved(target) {
   }
 
-  _pendingTargetAdded() {
+  _availableNodeTargetsChanged() {
     this._showThreadsIfNeeded();
   }