Use ChannelMojo from the browser to NaCl loader process.

components/nacl/loader/nacl_helper_win_64.cc

 // Copyright 2013 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 "components/nacl/loader/nacl_helper_win_64.h"
 
 #include <string>
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "base/power_monitor/power_monitor.h"
 #include "base/power_monitor/power_monitor_device_source.h"
 #include "base/process/launch.h"
 #include "base/process/memory.h"
 #include "base/strings/string_util.h"
 #include "base/timer/hi_res_timer_manager.h"
 #include "base/win/process_startup_helper.h"
 #include "components/nacl/broker/nacl_broker_listener.h"
 #include "components/nacl/common/nacl_switches.h"
 #include "components/nacl/loader/nacl_listener.h"
 #include "components/nacl/loader/nacl_main_platform_delegate.h"
 #include "content/public/app/sandbox_helper_win.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/common/main_function_params.h"
 #include "content/public/common/sandbox_init.h"
+#include "mojo/edk/embedder/embedder.h"
+#include "mojo/edk/embedder/platform_channel_pair.h"
+#include "mojo/edk/embedder/scoped_ipc_support.h"
 #include "sandbox/win/src/sandbox_types.h"
 
 extern int NaClMain(const content::MainFunctionParams&);
 
 namespace {
 // main() routine for the NaCl broker process.
 // This is necessary for supporting NaCl in Chrome on Win64.
 int NaClBrokerMain(const content::MainFunctionParams& parameters) {
   base::MessageLoopForIO main_message_loop;
   base::PlatformThread::SetName("CrNaClBrokerMain");
 
+  mojo::edk::Init();
+  mojo::edk::ScopedIPCSupport mojo_ipc_support(main_message_loop.task_runner());
+  mojo::edk::ScopedPlatformHandle platform_channel(
+      mojo::edk::PlatformChannelPair::PassClientHandleFromParentProcess(
+          *base::CommandLine::ForCurrentProcess()));
+  DCHECK(platform_channel.is_valid());
+  mojo::edk::SetParentPipeHandle(std::move(platform_channel));
+
   std::unique_ptr<base::PowerMonitorSource> power_monitor_source(
       new base::PowerMonitorDeviceSource());
   base::PowerMonitor power_monitor(std::move(power_monitor_source));
   base::HighResolutionTimerManager hi_res_timer_manager;
 
   NaClBrokerListener listener;
   listener.Listen();
 
   return 0;
 }
@@ skipping 32 matching lines @@
     return NaClMain(main_params);
 
   if (process_type == switches::kNaClBrokerProcess)
     return NaClBrokerMain(main_params);
 
   CHECK(false) << "Unknown NaCl 64 process.";
   return -1;
 }
 
 }  // namespace nacl