src/content/browser/renderer_host/render_process_host_mojo_impl.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CONTENT_BROWSER_RENDERER_HOST_BROWSER_RENDER_PROCESS_HOST_MOJO_IMPL_H_
   6 #define CONTENT_BROWSER_RENDERER_HOST_BROWSER_RENDER_PROCESS_HOST_MOJO_IMPL_H_
   7
   8 #include "base/memory/scoped_ptr.h"
   9 #include "base/process/process_handle.h"
  10 #include "content/common/mojo/render_process.mojom.h"
  11 #include "mojo/public/bindings/remote_ptr.h"
  12
  13 namespace content {
  14
  15 class MojoChannelInit;
  16 class RenderProcessHost;
  17
  18
  19 // RenderProcessHostMojoImpl is responsible for initiating and maintaining the
  20 // connection with the content side of RenderProcessHostMojo.
  21 class RenderProcessHostMojoImpl : public RenderProcessHostMojo {
  22  public:
  23   explicit RenderProcessHostMojoImpl(RenderProcessHost* host);
  24   virtual ~RenderProcessHostMojoImpl();
  25
  26   void SetWebUIHandle(int32 view_routing_id,
  27                       mojo::ScopedMessagePipeHandle handle);
  28
  29   // Invoked when the RenderPorcessHost has established a channel.
  30   void OnProcessLaunched();
  31
  32 private:
  33   struct PendingHandle;
  34
  35   // Establishes the mojo channel to the renderer.
  36   void CreateMojoChannel(base::ProcessHandle process_handle);
  37
  38   RenderProcessHost* host_;
  39
  40   // Used to establish the connection.
  41   scoped_ptr<MojoChannelInit> mojo_channel_init_;
  42
  43   mojo::RemotePtr<content::RenderProcessMojo> render_process_mojo_;
  44
  45   // If non-null we're waiting to send a WebUI handle to the renderer when
  46   // connected.
  47   scoped_ptr<PendingHandle> pending_handle_;
  48
  49   DISALLOW_COPY_AND_ASSIGN(RenderProcessHostMojoImpl);
  50 };
  51
  52 }  // namespace content
  53
  54 #endif  // CONTENT_BROWSER_RENDERER_HOST_BROWSER_RENDER_PROCESS_HOST_MOJO_IMPL_H_