Introduce IPC::ChannelProxy::Create*() and IPC::SynChannel::Create*()

ppapi/nacl_irt/ppapi_dispatcher.cc

Index: ppapi/nacl_irt/ppapi_dispatcher.cc
diff --git a/ppapi/nacl_irt/ppapi_dispatcher.cc b/ppapi/nacl_irt/ppapi_dispatcher.cc
index 9ca76b28b8240dd4e28a323ebde65324c1a261d2..e01114e831d0b589859e749f3a55474c532728fe 100644
--- a/ppapi/nacl_irt/ppapi_dispatcher.cc
+++ b/ppapi/nacl_irt/ppapi_dispatcher.cc
@@ -63,13 +63,13 @@ PpapiDispatcher::PpapiDispatcher(scoped_refptr<base::MessageLoopProxy> io_loop,
   // Delay initializing the SyncChannel until after we add filters. This
   // ensures that the filters won't miss any messages received by
   // the channel.
-  channel_.reset(new IPC::SyncChannel(
-      this, GetIPCMessageLoop(), GetShutdownEvent()));
+  channel_ =IPC::SyncChannel::Create(
+      this, GetIPCMessageLoop(), GetShutdownEvent());
   channel_->AddFilter(new proxy::PluginMessageFilter(
       NULL, proxy::PluginGlobals::Get()->resource_reply_thread_registrar()));
   channel_->AddFilter(
       new tracing::ChildTraceMessageFilter(message_loop_.get()));
-  channel_->Init(channel_handle, IPC::Channel::MODE_SERVER, true);
+  channel_->InitServer(channel_handle, true);
 }
 
 base::MessageLoopProxy* PpapiDispatcher::GetIPCMessageLoop() {