Introduce IPC::Channel::Create*() to ensure it being heap-allocated.

ipc/ipc_channel_common.cc

+// Copyright (c) 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.
+
+#include "ipc/ipc_channel.h"
+
+namespace IPC {
+
+// static
+scoped_ptr<Channel> Channel::CreateByModeForProxy(
+    const IPC::ChannelHandle &channel_handle, Mode mode, Listener* listener) {
+  return make_scoped_ptr(
+      new Channel(channel_handle, mode, listener));
+}
+
+// static
+scoped_ptr<Channel> Channel::CreateClient(
+    const IPC::ChannelHandle &channel_handle, Listener* listener) {
+  return make_scoped_ptr(
+      new Channel(channel_handle, Channel::MODE_CLIENT, listener));
+}
+
+// static
+scoped_ptr<Channel> Channel::CreateNamedServer(
+    const IPC::ChannelHandle &channel_handle, Listener* listener) {
+  return make_scoped_ptr(
+      new Channel(channel_handle, Channel::MODE_NAMED_SERVER, listener));
+}
+
+// static
+scoped_ptr<Channel> Channel::CreateNamedClient(
+    const IPC::ChannelHandle &channel_handle, Listener* listener) {
+  return make_scoped_ptr(
+      new Channel(channel_handle, Channel::MODE_NAMED_CLIENT, listener));
+}
+
+#if defined(OS_POSIX)
+// static
+scoped_ptr<Channel> Channel::CreateOpenNamedServer(
+    const IPC::ChannelHandle &channel_handle, Listener* listener) {
+  return make_scoped_ptr(
+      new Channel(channel_handle, Channel::MODE_OPEN_NAMED_SERVER, listener));
+}
+#endif
+
+// static
+scoped_ptr<Channel> Channel::CreateServer(
+    const IPC::ChannelHandle &channel_handle, Listener* listener) {
+  return make_scoped_ptr(
+      new Channel(channel_handle, Channel::MODE_SERVER, listener));
+}
+
+
+}  // namespace IPC
+