Move Mojo channel initialization closer to IPC::Channel setup

content/browser/renderer_host/render_process_host_mojo_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_BROWSER_RENDERER_HOST_BROWSER_RENDER_PROCESS_HOST_MOJO_IMPL_H_
-#define CONTENT_BROWSER_RENDERER_HOST_BROWSER_RENDER_PROCESS_HOST_MOJO_IMPL_H_
-
-#include "base/memory/scoped_ptr.h"
-#include "base/process/process_handle.h"
-#include "content/common/mojo/render_process.mojom.h"
-#include "mojo/public/cpp/bindings/remote_ptr.h"
-
-namespace content {
-
-class MojoChannelInit;
-class RenderProcessHost;
-
-// RenderProcessHostMojoImpl is responsible for initiating and maintaining the
-// connection with the content side of RenderProcessHostMojo.
-class RenderProcessHostMojoImpl : public RenderProcessHostMojo {
- public:
-  explicit RenderProcessHostMojoImpl(RenderProcessHost* host);
-  virtual ~RenderProcessHostMojoImpl();
-
-  void SetWebUIHandle(int32 view_routing_id,
-                      mojo::ScopedMessagePipeHandle handle);
-
-  // Invoked when the RenderPorcessHost has established a channel.
-  void OnProcessLaunched();
-
-private:
-  struct PendingHandle;
-
-  // Establishes the mojo channel to the renderer.
-  void CreateMojoChannel(base::ProcessHandle process_handle);
-
-  RenderProcessHost* host_;
-
-  // Used to establish the connection.
-  scoped_ptr<MojoChannelInit> mojo_channel_init_;
-
-  mojo::RemotePtr<content::RenderProcessMojo> render_process_mojo_;
-
-  // If non-null we're waiting to send a WebUI handle to the renderer when
-  // connected.
-  scoped_ptr<PendingHandle> pending_handle_;
-
-  DISALLOW_COPY_AND_ASSIGN(RenderProcessHostMojoImpl);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_RENDERER_HOST_BROWSER_RENDER_PROCESS_HOST_MOJO_IMPL_H_