Service CreateNewWindow on the UI thread with a new mojo interface

content/browser/renderer_host/render_message_filter_ui.h

Index: content/browser/renderer_host/render_message_filter_ui.h
diff --git a/content/browser/renderer_host/render_message_filter_ui.h b/content/browser/renderer_host/render_message_filter_ui.h
new file mode 100644
index 0000000000000000000000000000000000000000..a789f2504e592caca44a86b1a2f29da1b037e592
--- /dev/null
+++ b/content/browser/renderer_host/render_message_filter_ui.h
@@ -0,0 +1,48 @@
+// 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 CONTENT_BROWSER_RENDERER_HOST_RENDER_MESSAGE_FILTER_UI_H_
+#define CONTENT_BROWSER_RENDERER_HOST_RENDER_MESSAGE_FILTER_UI_H_
+
+#include "base/macros.h"
+#include "base/memory/ref_counted.h"
+#include "content/common/render_message_filter.mojom.h"
+
+namespace content {
+
+class RenderProcessHost;
+class DOMStorageContextWrapper;
+
+class RenderMessageFilterUI : public mojom::RenderMessageFilterUI {
+ public:
+  static void CreateFilter(
+      RenderProcessHost* rph,
+      DOMStorageContextWrapper* dom_storage_context,
+      mojom::RenderMessageFilterUIAssociatedRequest request);
+
+  RenderMessageFilterUI(RenderProcessHost* rph,
+                        DOMStorageContextWrapper* dom_storage_context);
+  ~RenderMessageFilterUI() override;
+
+ private:
+  // mojom::RenderMessageFilterUI:
+  void CreateNewWindow(mojom::CreateNewWindowParamsPtr params,
+                       const CreateNewWindowCallback& callback) override;
+
+  void RunCreateWindowCompleteCallback(const CreateNewWindowCallback& callback,
+                                       mojom::CreateNewWindowReplyPtr reply,
+                                       int render_view_route_id,
+                                       int main_frame_route_id,
+                                       int main_frame_widget_route_id,
+                                       int cloned_session_storage_namespace_id);
+
+  RenderProcessHost* render_process_host_;
+  scoped_refptr<DOMStorageContextWrapper> dom_storage_context_;
+
+  DISALLOW_COPY_AND_ASSIGN(RenderMessageFilterUI);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_MESSAGE_FILTER_UI_H_