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

third_party/WebKit/Source/core/inspector/InspectorPageAgent.cpp

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 883 matching lines @@
           .setPageX(AdjustScrollForAbsoluteZoom(page_offset.Width(), page_zoom))
           .setPageY(
               AdjustScrollForAbsoluteZoom(page_offset.Height(), page_zoom))
           .setClientWidth(visible_rect.Width() - scrollbar_width)
           .setClientHeight(visible_rect.Height() - scrollbar_height)
           .setScale(scale)
           .build();
   return Response::OK();
 }
 
+protocol::Response InspectorPageAgent::ensureIsolatedWorld(
+    const String& frame_id,
+    int world_id,
+    Maybe<String> security_origin,
+    Maybe<String> content_security_policy) {
+  LocalFrame* frame =
+      IdentifiersFactory::FrameById(inspected_frames_, frame_id);
+  if (!frame)
+    return Response::Error("No frame for given id found");
+
+  if (world_id <= DOMWrapperWorld::kMainWorldId ||
+      world_id >= DOMWrapperWorld::kEmbedderWorldIdLimit) {
+    return Response::Error("Invalid worldId");
+  }
+
+  frame->GetScriptController().EnsureIsolatedWorld(world_id);
+  if (security_origin.isJust()) {
+    DOMWrapperWorld::SetIsolatedWorldSecurityOrigin(
+        world_id, SecurityOrigin::CreateFromString(security_origin.fromJust()));
+  }
+
+  if (content_security_policy.isJust()) {
+    DOMWrapperWorld::SetIsolatedWorldContentSecurityPolicy(
+        world_id, content_security_policy.fromJust());
+  }
+  return Response::OK();
+}
+
 DEFINE_TRACE(InspectorPageAgent) {
   visitor->Trace(inspected_frames_);
   visitor->Trace(inspector_resource_content_loader_);
   InspectorBaseAgent::Trace(visitor);
 }
 
 }  // namespace blink