[Reland] Allow headless TabSocket in isolated worlds & remove obsolete logic

headless/lib/renderer/devtools_isolated_world_ids.h

Index: headless/lib/renderer/devtools_isolated_world_ids.h
diff --git a/headless/lib/renderer/devtools_isolated_world_ids.h b/headless/lib/renderer/devtools_isolated_world_ids.h
new file mode 100644
index 0000000000000000000000000000000000000000..bb83d09f525c11fede85b3b346b9fcba7bd12799
--- /dev/null
+++ b/headless/lib/renderer/devtools_isolated_world_ids.h
@@ -0,0 +1,18 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef HEADLESS_LIB_RENDERER_DEVTOOLS_ISOLATED_WORLD_IDS_H_
+#define HEADLESS_LIB_RENDERER_DEVTOOLS_ISOLATED_WORLD_IDS_H_
+
+namespace headless {
+
+// Keep in sync with DOMWrapperWorld::WorldId.
+enum {
+  kDevToolsFirstIsolatedWorldId = (1 << 29) + 1,
+  kDevToolsLastIsolatedWorldId = kDevToolsFirstIsolatedWorldId + 100,
+};

[jochen (gone - plz use gerrit), 2017/05/19 13:34:05]

why not put this file in public/web ? it's ok for webkit to include headers from
public/web

[alex clarke (OOO till 29th), 2017/05/19 14:53:01]

Done.  I wonder if I should have pulled all the enums from DOMWrapperWorld in
too?  I didn't because the comments mentioning  DOMWrapperWorld APIs felt odd to
be there.

+
+}  // namespace headless
+
+#endif  // HEADLESS_LIB_RENDERER_DEVTOOLS_ISOLATED_WORLD_IDS_H_