Adds plumbing to pass WebUI mojo::Handle from browser to renderer

content/common/mojo/mojo_channel_init.cc

 // 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/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()
     : 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_));
   }
 }
 
+// static
+void MojoChannelInit::InitMojo() {
+  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.
+  initializer.Get();
+}
+
 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_ = mojo::embedder::CreateChannel(
       mojo::embedder::ScopedPlatformHandle(
           mojo::embedder::PlatformHandle(file)),
       io_thread_task_runner,
@@ skipping 13 matching lines @@
     io_thread->PostTask(
         FROM_HERE,
         base::Bind(&mojo::embedder::DestroyChannelOnIOThread, channel));
     return;
   }
   host->channel_info_ = channel;
 }
 
 
 }  // namespace content