[Mac] Remove base::LaunchSynchronize and rewrite content::MachBroker.

content/app/content_main_runner.cc

 // Copyright (c) 2012 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/public/app/content_main_runner.h"
 
 #include <stdlib.h>
 
 #include "base/allocator/allocator_extension.h"
 #include "base/at_exit.h"
@@ skipping 162 matching lines @@
 base::LazyInstance<ContentRendererClient>
     g_empty_content_renderer_client = LAZY_INSTANCE_INITIALIZER;
 base::LazyInstance<ContentUtilityClient>
     g_empty_content_utility_client = LAZY_INSTANCE_INITIALIZER;
 #endif  // !OS_IOS
 
 #if defined(OS_WIN)
 
 static CAppModule _Module;
 
-#elif defined(OS_MACOSX) && !defined(OS_IOS)
-
-// Completes the Mach IPC handshake by sending this process' task port to the
-// parent process.  The parent is listening on the Mach port given by
-// |GetMachPortName()|.  The task port is used by the parent to get CPU/memory
-// stats to display in the task manager.
-void SendTaskPortToParentProcess() {
-  const mach_msg_timeout_t kTimeoutMs = 100;
-  const int32_t kMessageId = 0;
-  std::string mach_port_name = MachBroker::GetMachPortName();
-
-  base::MachSendMessage child_message(kMessageId);
-  if (!child_message.AddDescriptor(mach_task_self())) {
-    LOG(ERROR) << "child AddDescriptor(mach_task_self()) failed.";
-    return;
-  }
-
-  base::MachPortSender child_sender(mach_port_name.c_str());
-  kern_return_t err = child_sender.SendMessage(child_message, kTimeoutMs);
-  if (err != KERN_SUCCESS) {
-    LOG(ERROR) <<
-        base::StringPrintf("child SendMessage() failed: 0x%x %s", err,
-                           mach_error_string(err));
-  }
-}
-
 #endif  // defined(OS_WIN)
 
 #if defined(OS_POSIX) && !defined(OS_IOS)
 
 // Setup signal-handling state: resanitize most signals, ignore SIGPIPE.
 void SetupSignalHandlers() {
   // Sanitise our signal handling state. Signals that were ignored by our
   // parent will also be ignored by us. We also inherit our parent's sigmask.
   sigset_t empty_signal_set;
   CHECK(0 == sigemptyset(&empty_signal_set));
@@ skipping 440 matching lines @@
         process_type == switches::kRendererProcess ||
         process_type == switches::kUtilityProcess ||
         process_type == switches::kWorkerProcess ||
         (delegate &&
          delegate->ProcessRegistersWithSystemProcess(process_type))) {
       base::PowerMonitor::AllocateSystemIOPorts();
     }
 
     if (!process_type.empty() &&
         (!delegate || delegate->ShouldSendMachPort(process_type))) {
-      SendTaskPortToParentProcess();
+      MachBroker::ChildSendTaskPortToParent();
     }
 #elif defined(OS_WIN)
     // This must be done early enough since some helper functions like
     // IsTouchEnabled, needed to load resources, may call into the theme dll.
     EnableThemeSupportOnAllWindowStations();
 #if defined(ENABLE_HIDPI)
     ui::EnableHighDPISupport();
 #endif
     SetupCRT(command_line);
 #endif
@@ skipping 142 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(ContentMainRunnerImpl);
 };
 
 // static
 ContentMainRunner* ContentMainRunner::Create() {
   return new ContentMainRunnerImpl();
 }
 
 }  // namespace content