Mac: Other approach for IPCing child task_ts.

chrome/browser/child_process_launcher.cc

 // Copyright (c) 2009 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 "chrome/browser/child_process_launcher.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/scoped_ptr.h"
 #include "base/thread.h"
 #include "chrome/browser/chrome_thread.h"
 #include "chrome/common/chrome_descriptors.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/process_watcher.h"
 #include "chrome/common/result_codes.h"
 
 #if defined(OS_WIN)
 #include "chrome/browser/sandbox_policy.h"
 #elif defined(OS_LINUX)
 #include "base/singleton.h"
 #include "chrome/browser/crash_handler_host_linux.h"
 #include "chrome/browser/zygote_host_linux.h"
 #include "chrome/browser/renderer_host/render_sandbox_host_linux.h"
 #endif
 
+#if defined(OS_MACOSX)
+#include "chrome/browser/mach_broker_mac.h"
+#endif
+
 #if defined(OS_POSIX)
 #include "base/global_descriptors_posix.h"
 #endif
 
 // Having the functionality of ChildProcessLauncher be in an internal
 // ref counted object allows us to automatically terminate the process when the
 // parent class destructs, while still holding on to state that we need.
 class ChildProcessLauncher::Context
     : public base::RefCountedThreadSafe<ChildProcessLauncher::Context> {
  public:
@@ skipping 118 matching lines @@
       if (is_renderer) {
         const int sandbox_fd =
             Singleton<RenderSandboxHostLinux>()->GetRendererSocket();
         fds_to_map.push_back(std::make_pair(
             sandbox_fd,
             kSandboxIPCChannel + base::GlobalDescriptors::kBaseDescriptor));
       }
 #endif  // defined(OS_LINUX)
 
       // Actually launch the app.
-      if (!base::LaunchApp(cmd_line->argv(), env, fds_to_map, false, &handle))
+      bool launched;
+#if defined(OS_MACOSX)
+      task_t child_task;
+      launched = base::LaunchAppAndGetTask(
+          cmd_line->argv(), env, fds_to_map, false, &child_task, &handle);
+      if (launched && child_task != MACH_PORT_NULL) {
+          MachBroker::instance()->RegisterPid(
+              handle,
+              MachBroker::MachInfo().SetTask(child_task));
+      }
+#else
+      launched = base::LaunchApp(cmd_line->argv(), env, fds_to_map,
+                                 /* wait= */false, &handle);
+#endif
+      if (!launched)
         handle = base::kNullProcessHandle;
     }
-#endif
+#endif  // else defined(OS_POSIX)
 
     ChromeThread::PostTask(
         client_thread_id_, FROM_HERE,
         NewRunnableMethod(
             this,
             &ChildProcessLauncher::Context::Notify,
 #if defined(OS_LINUX)
             zygote,
 #endif
             handle));
@@ skipping 125 matching lines @@
   if (child_exited)
     context_->process_.Close();
 
   return did_crash;
 }
 
 void ChildProcessLauncher::SetProcessBackgrounded(bool background) {
   DCHECK(!context_->starting_);
   context_->process_.SetProcessBackgrounded(background);
 }