Update mojo sdk to rev 3d23dae011859a2aae49f1d1adde705c8e85d819

content/common/mojo/channel_init.h

+// Copyright 2015 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_COMMON_MOJO_CHANNEL_INIT_H_
+#define CONTENT_COMMON_MOJO_CHANNEL_INIT_H_
+
+#include "base/files/file.h"
+#include "base/memory/ref_counted.h"
+#include "base/memory/weak_ptr.h"
+#include "content/common/content_export.h"
+#include "ipc/mojo/scoped_ipc_support.h"
+#include "third_party/mojo/src/mojo/edk/embedder/channel_info_forward.h"
+#include "third_party/mojo/src/mojo/public/cpp/system/message_pipe.h"
+
+namespace base {
+class MessageLoopProxy;
+class TaskRunner;
+}
+
+namespace content {
+
+// ChannelInit handles creation and destruction of the Mojo channel. It is not
+// thread-safe, but may be used on any single thread with a MessageLoop.
+class CONTENT_EXPORT ChannelInit {
+ public:
+  ChannelInit();
+  ~ChannelInit();
+
+  // Initializes the channel. This takes ownership of |file|. Returns the
+  // primordial MessagePipe for the channel.
+  mojo::ScopedMessagePipeHandle Init(
+      base::PlatformFile file,
+      scoped_refptr<base::TaskRunner> io_thread_task_runner);
+
+  // Notifies the channel that we (hence it) will soon be destroyed.
+  void WillDestroySoon();
+
+  // Get/Set a shared I/O TaskRunner for children to use in single process mode.
+  static scoped_refptr<base::TaskRunner> GetSingleProcessIOTaskRunner();
+  static void SetSingleProcessIOTaskRunner(
+      scoped_refptr<base::TaskRunner> io_task_runner);
+
+ private:
+  // Invoked on the thread on which this object lives once the channel has been
+  // established. This is a static method that takes a weak pointer to self,
+  // since we want to destroy the channel if we were destroyed first.
+  static void OnCreatedChannel(
+      base::WeakPtr<ChannelInit> self,
+      scoped_ptr<IPC::ScopedIPCSupport> ipc_support,
+      mojo::embedder::ChannelInfo* channel);
+
+  // If non-null the channel has been established.
+  mojo::embedder::ChannelInfo* channel_info_;
+
+  scoped_ptr<IPC::ScopedIPCSupport> ipc_support_;
+  base::WeakPtrFactory<ChannelInit> weak_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(ChannelInit);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_COMMON_MOJO_CHANNEL_INIT_H_