Revert of Adds the ability for the renderer to create the mojo channel

content/common/mojo/mojo_channel_init.cc

Index: content/common/mojo/mojo_channel_init.cc
diff --git a/content/common/mojo/mojo_channel_init.cc b/content/common/mojo/mojo_channel_init.cc
deleted file mode 100644
index aaace7224981c744f0ee1f4e64d1de3f18f04bb6..0000000000000000000000000000000000000000
--- a/content/common/mojo/mojo_channel_init.cc
+++ /dev/null
@@ -1,97 +0,0 @@
-// 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 "content/common/mojo/mojo_channel_init.h"
-
-#include "base/bind.h"
-#include "base/lazy_instance.h"
-#include "base/message_loop/message_loop.h"
-#include "base/synchronization/lock.h"
-#include "mojo/system/embedder/embedder.h"
-
-namespace content {
-
-namespace {
-
-struct Initializer {
-  Initializer() {
-    mojo::embedder::Init();
-  }
-};
-
-static base::LazyInstance<Initializer>::Leaky initializer =
-    LAZY_INSTANCE_INITIALIZER;
-
-// Initializes mojo. Use a lazy instance to ensure we only do this once.
-// TODO(sky): this likely wants to move to a more central location, such as
-// startup.
-void InitMojo() {
-  initializer.Get();
-}
-
-}  // namespace
-
-MojoChannelInit::MojoChannelInit()
-    : main_thread_(base::MessageLoop::current()->message_loop_proxy()),
-      channel_info_(NULL),
-      weak_factory_(this) {
-}
-
-MojoChannelInit::~MojoChannelInit() {
-  bootstrap_message_pipe_.reset();
-  if (channel_info_) {
-    io_thread_task_runner_->PostTask(
-        FROM_HERE,
-        base::Bind(&mojo::embedder::DestroyChannelOnIOThread, channel_info_));
-  }
-}
-
-void MojoChannelInit::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;
-  InitMojo();
-  bootstrap_message_pipe_.reset(
-      mojo::Handle(
-          mojo::embedder::CreateChannel(
-              mojo::embedder::ScopedPlatformHandle(
-                  mojo::embedder::PlatformHandle(file)),
-              io_thread_task_runner,
-              base::Bind(&MojoChannelInit::OnCreatedChannelOnIOThread,
-                         weak_factory_.GetWeakPtr(),
-                         main_thread_,
-                         io_thread_task_runner))));
-}
-
-// static
-void MojoChannelInit::OnCreatedChannelOnIOThread(
-    base::WeakPtr<MojoChannelInit> host,
-    scoped_refptr<base::TaskRunner> main_thread,
-    scoped_refptr<base::TaskRunner> io_thread,
-    mojo::embedder::ChannelInfo* channel) {
-  main_thread->PostTask(
-      FROM_HERE,
-      base::Bind(&MojoChannelInit::OnCreatedChannelOnMainThread, host,
-                 io_thread, channel));
-}
-
-// static
-void MojoChannelInit::OnCreatedChannelOnMainThread(
-    base::WeakPtr<MojoChannelInit> host,
-    scoped_refptr<base::TaskRunner> io_thread,
-    mojo::embedder::ChannelInfo* channel) {
-  // By the time we get here |host| may have been destroyed. If so, shutdown the
-  // channel.
-  if (!host.get()) {
-    io_thread->PostTask(
-        FROM_HERE,
-        base::Bind(&mojo::embedder::DestroyChannelOnIOThread, channel));
-    return;
-  }
-  host->channel_info_ = channel;
-}
-
-
-}  // namespace content