Move Mojo channel initialization closer to IPC::Channel setup

mojo/common/channel_init.cc

Index: mojo/common/channel_init.cc
diff --git a/mojo/common/mojo_channel_init.cc b/mojo/common/channel_init.cc
similarity index 77%
rename from mojo/common/mojo_channel_init.cc
rename to mojo/common/channel_init.cc
index 96190f9d5d051fd33ad2152f3af075fe3be0ae76..7eef2aec705d47c8b6f07e79b521fbb43c359b2b 100644
--- a/mojo/common/mojo_channel_init.cc
+++ b/mojo/common/channel_init.cc
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "mojo/common/mojo_channel_init.h"
+#include "mojo/common/channel_init.h"
 
 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
@@ -11,13 +11,12 @@
 namespace mojo {
 namespace common {
 
-MojoChannelInit::MojoChannelInit()
+ChannelInit::ChannelInit()
     : channel_info_(NULL),
       weak_factory_(this) {
 }
 
-MojoChannelInit::~MojoChannelInit() {
-  bootstrap_message_pipe_.reset();
+ChannelInit::~ChannelInit() {
   if (channel_info_) {
     io_thread_task_runner_->PostTask(
         FROM_HERE,
@@ -25,23 +24,24 @@ MojoChannelInit::~MojoChannelInit() {
   }
 }
 
-void MojoChannelInit::Init(
+mojo::ScopedMessagePipeHandle ChannelInit::Init(
     base::PlatformFile file,
     scoped_refptr<base::TaskRunner> io_thread_task_runner) {
   DCHECK(!io_thread_task_runner_.get());  // Should only init once.
   io_thread_task_runner_ = io_thread_task_runner;
-  bootstrap_message_pipe_ = mojo::embedder::CreateChannel(
+  mojo::ScopedMessagePipeHandle message_pipe = mojo::embedder::CreateChannel(
       mojo::embedder::ScopedPlatformHandle(
           mojo::embedder::PlatformHandle(file)),
       io_thread_task_runner,
-      base::Bind(&MojoChannelInit::OnCreatedChannel, weak_factory_.GetWeakPtr(),
+      base::Bind(&ChannelInit::OnCreatedChannel, weak_factory_.GetWeakPtr(),
                  io_thread_task_runner),
       base::MessageLoop::current()->message_loop_proxy()).Pass();
+  return message_pipe.Pass();
 }
 
 // static
-void MojoChannelInit::OnCreatedChannel(
-    base::WeakPtr<MojoChannelInit> host,
+void ChannelInit::OnCreatedChannel(
+    base::WeakPtr<ChannelInit> host,
     scoped_refptr<base::TaskRunner> io_thread,
     embedder::ChannelInfo* channel) {
   // By the time we get here |host| may have been destroyed. If so, shutdown the