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

content/child/npapi/np_channel_base.cc

Index: content/child/npapi/np_channel_base.cc
diff --git a/content/child/npapi/np_channel_base.cc b/content/child/npapi/np_channel_base.cc
index 76845bd8f21a9707079d201782c4ea9414747157..d4b02ff1dd3bc64e7bac8e48c2ff03382bf4b0bc 100644
--- a/content/child/npapi/np_channel_base.cc
+++ b/content/child/npapi/np_channel_base.cc
@@ -178,9 +178,8 @@ bool NPChannelBase::Init(base::MessageLoopProxy* ipc_message_loop,
     return false;
 #endif
 
-  channel_.reset(new IPC::SyncChannel(
-      channel_handle_, mode_, this, ipc_message_loop, create_pipe_now,
-      shutdown_event));
+  channel_ = IPC::SyncChannel::Create(this, ipc_message_loop, shutdown_event);

[jam, 2014/06/03 17:30:41]

why not use the Create method with 6 parameters as before? splitting
construction from Init call before is only done when needing to add filters
in-between

[Hajime Morrita, 2014/06/03 18:01:59]

Done.

+  channel_->Init(channel_handle_, mode_, create_pipe_now);
 
 #if defined(OS_POSIX)
   // Check the validity of fd for bug investigation.  Remove after fixed.