Add a DevTools command to create an isolated world for a given frame

third_party/WebKit/Source/bindings/core/v8/ScriptController.cpp

Index: third_party/WebKit/Source/bindings/core/v8/ScriptController.cpp
diff --git a/third_party/WebKit/Source/bindings/core/v8/ScriptController.cpp b/third_party/WebKit/Source/bindings/core/v8/ScriptController.cpp
index f1c65dacf7115aa064e955e5310a1a05aaa39b28..c938a080b95f9d17ebd0ed5b1b4a36b16ac286a9 100644
--- a/third_party/WebKit/Source/bindings/core/v8/ScriptController.cpp
+++ b/third_party/WebKit/Source/bindings/core/v8/ScriptController.cpp
@@ -359,4 +359,20 @@ void ScriptController::ExecuteScriptInIsolatedWorld(
   }
 }
 
+int ScriptController::CreateNewDInspectorIsolatedWorld(
+    const String& world_name) {
+  RefPtr<DOMWrapperWorld> world = DOMWrapperWorld::Create(
+      GetIsolate(), DOMWrapperWorld::WorldType::kInspectorIsolated);
+  // Bail out if we could not create an isolated world.
+  if (!world)
+    return DOMWrapperWorld::kInvalidWorldId;
+  if (!world_name.IsEmpty()) {
+    DOMWrapperWorld::SetIsolatedWorldHumanReadableName(world->GetWorldId(),
+                                                       world_name);
+  }
+  // Make sure the execution context exists.
+  WindowProxy(*world);
+  return world->GetWorldId();
+}
+
 }  // namespace blink