Add IPC::ChannelProxy::Create() and IPC::SyncChannel::Create()

ipc/ipc_channel_proxy.cc

Index: ipc/ipc_channel_proxy.cc
diff --git a/ipc/ipc_channel_proxy.cc b/ipc/ipc_channel_proxy.cc
index e88bb5d0e72abd0e508fb4b1c1fc96833e6d9699..ceffb9474c47290cc11c4590cf1f680d8bc70fa6 100644
--- a/ipc/ipc_channel_proxy.cc
+++ b/ipc/ipc_channel_proxy.cc
@@ -304,13 +304,15 @@ void ChannelProxy::Context::OnDispatchBadMessage(const Message& message) {
 
 //-----------------------------------------------------------------------------
 
-ChannelProxy::ChannelProxy(const IPC::ChannelHandle& channel_handle,
-                           Channel::Mode mode,
-                           Listener* listener,
-                           base::SingleThreadTaskRunner* ipc_task_runner)
-    : context_(new Context(listener, ipc_task_runner)),
-      did_init_(false) {
-  Init(channel_handle, mode, true);
+// static
+scoped_ptr<ChannelProxy> ChannelProxy::Create(
+    const IPC::ChannelHandle& channel_handle,
+    Channel::Mode mode,
+    Listener* listener,
+    base::SingleThreadTaskRunner* ipc_task_runner) {
+  scoped_ptr<ChannelProxy> channel(new ChannelProxy(listener, ipc_task_runner));
+  channel->Init(channel_handle, mode, true);
+  return channel.Pass();
 }
 
 ChannelProxy::ChannelProxy(Context* context)
@@ -318,6 +320,11 @@ ChannelProxy::ChannelProxy(Context* context)
       did_init_(false) {
 }
 
+ChannelProxy::ChannelProxy(Listener* listener,
+                           base::SingleThreadTaskRunner* ipc_task_runner)
+    : context_(new Context(listener, ipc_task_runner)), did_init_(false) {
+}
+
 ChannelProxy::~ChannelProxy() {
   DCHECK(CalledOnValidThread());