Move Mojo channel initialization closer to IPC::Channel setup

content/renderer/web_ui_setup_impl.h

+// Copyright 2014 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_RENDERER_WEB_UI_SETUP_IMPL_H_
+#define CONTENT_RENDERER_WEB_UI_SETUP_IMPL_H_
+
+#include "base/basictypes.h"
+#include "content/common/web_ui_setup.mojom.h"
+#include "mojo/public/cpp/bindings/error_handler.h"
+#include "mojo/public/cpp/bindings/remote_ptr.h"
+
+namespace content {
+
+class WebUISetupImpl : public WebUISetup,
+                       public mojo::ErrorHandler {
+ public:
+  static void Bind(mojo::ScopedMessagePipeHandle handle);
+
+ private:
+  explicit WebUISetupImpl(mojo::ScopedMessagePipeHandle handle);
+  virtual ~WebUISetupImpl();
+
+  // WebUISetup methods:
+  virtual void SetWebUIHandle(
+      int32_t view_routing_id,
+      mojo::ScopedMessagePipeHandle web_ui_handle) OVERRIDE;
+
+  // mojo::ErrorHandler methods:
+  virtual void OnError() OVERRIDE;
+
+  mojo::RemotePtr<WebUISetupClient> client_;
+
+  DISALLOW_COPY_AND_ASSIGN(WebUISetupImpl);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_RENDERER_WEB_UI_SETUP_IMPL_H_