diff -r 000000000000 -r 6474c204b198 ipc/chromium/src/base/process_util_mac.mm
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ipc/chromium/src/base/process_util_mac.mm	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,329 @@
+// Copyright (c) 2008 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 "base/process_util.h"
+
+#import <Cocoa/Cocoa.h>
+#include <crt_externs.h>
+#include <spawn.h>
+#include <sys/sysctl.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+#include <string>
+
+#include "base/eintr_wrapper.h"
+#include "base/logging.h"
+#include "base/rand_util.h"
+#include "base/string_util.h"
+#include "base/time.h"
+
+namespace base {
+
+void FreeEnvVarsArray(char* array[], int length)
+{
+  for (int i = 0; i < length; i++) {
+    free(array[i]);
+  }
+  delete[] array;
+}
+
+bool LaunchApp(const std::vector<std::string>& argv,
+               const file_handle_mapping_vector& fds_to_remap,
+               bool wait, ProcessHandle* process_handle) {
+  return LaunchApp(argv, fds_to_remap, environment_map(),
+                   wait, process_handle);
+}
+
+bool LaunchApp(const std::vector<std::string>& argv,
+               const file_handle_mapping_vector& fds_to_remap,
+               const environment_map& env_vars_to_set,
+               bool wait, ProcessHandle* process_handle,
+               ProcessArchitecture arch) {
+  return LaunchApp(argv, fds_to_remap, env_vars_to_set,
+                   PRIVILEGES_INHERIT,
+                   wait, process_handle);
+}
+
+bool LaunchApp(const std::vector<std::string>& argv,
+               const file_handle_mapping_vector& fds_to_remap,
+               const environment_map& env_vars_to_set,
+               ChildPrivileges privs,
+               bool wait, ProcessHandle* process_handle,
+               ProcessArchitecture arch) {
+  bool retval = true;
+
+  char* argv_copy[argv.size() + 1];
+  for (size_t i = 0; i < argv.size(); i++) {
+    argv_copy[i] = const_cast<char*>(argv[i].c_str());
+  }
+  argv_copy[argv.size()] = NULL;
+
+  // Make sure we don't leak any FDs to the child process by marking all FDs
+  // as close-on-exec.
+  SetAllFDsToCloseOnExec();
+
+  // Copy _NSGetEnviron() to a new char array and add the variables
+  // in env_vars_to_set.
+  // Existing variables are overwritten by env_vars_to_set.
+  int pos = 0;
+  environment_map combined_env_vars = env_vars_to_set;
+  while((*_NSGetEnviron())[pos] != NULL) {
+    std::string varString = (*_NSGetEnviron())[pos];
+    std::string varName = varString.substr(0, varString.find_first_of('='));
+    std::string varValue = varString.substr(varString.find_first_of('=') + 1);
+    if (combined_env_vars.find(varName) == combined_env_vars.end()) {
+      combined_env_vars[varName] = varValue;
+    }
+    pos++;
+  }
+  int varsLen = combined_env_vars.size() + 1;
+
+  char** vars = new char*[varsLen];
+  int i = 0;
+  for (environment_map::const_iterator it = combined_env_vars.begin();
+       it != combined_env_vars.end(); ++it) {
+    std::string entry(it->first);
+    entry += "=";
+    entry += it->second;
+    vars[i] = strdup(entry.c_str());
+    i++;
+  }
+  vars[i] = NULL;
+
+  posix_spawn_file_actions_t file_actions;
+  if (posix_spawn_file_actions_init(&file_actions) != 0) {
+    FreeEnvVarsArray(vars, varsLen);
+    return false;
+  }
+
+  // Turn fds_to_remap array into a set of dup2 calls.
+  for (file_handle_mapping_vector::const_iterator it = fds_to_remap.begin();
+       it != fds_to_remap.end();
+       ++it) {
+    int src_fd = it->first;
+    int dest_fd = it->second;
+
+    if (src_fd == dest_fd) {
+      int flags = fcntl(src_fd, F_GETFD);
+      if (flags != -1) {
+        fcntl(src_fd, F_SETFD, flags & ~FD_CLOEXEC);
+      }
+    } else {
+      if (posix_spawn_file_actions_adddup2(&file_actions, src_fd, dest_fd) != 0) {
+        posix_spawn_file_actions_destroy(&file_actions);
+        FreeEnvVarsArray(vars, varsLen);
+        return false;
+      }
+    }
+  }
+
+  // Set up the CPU preference array.
+  cpu_type_t cpu_types[1];
+  switch (arch) {
+    case PROCESS_ARCH_I386:
+      cpu_types[0] = CPU_TYPE_X86;
+      break;
+    case PROCESS_ARCH_X86_64:
+      cpu_types[0] = CPU_TYPE_X86_64;
+      break;
+    case PROCESS_ARCH_PPC:
+      cpu_types[0] = CPU_TYPE_POWERPC;
+    default:
+      cpu_types[0] = CPU_TYPE_ANY;
+      break;
+  }
+
+  // Initialize spawn attributes.
+  posix_spawnattr_t spawnattr;
+  if (posix_spawnattr_init(&spawnattr) != 0) {
+    FreeEnvVarsArray(vars, varsLen);
+    return false;
+  }
+
+  // Set spawn attributes.
+  size_t attr_count = 1;
+  size_t attr_ocount = 0;
+  if (posix_spawnattr_setbinpref_np(&spawnattr, attr_count, cpu_types, &attr_ocount) != 0 ||
+      attr_ocount != attr_count) {
+    FreeEnvVarsArray(vars, varsLen);
+    posix_spawnattr_destroy(&spawnattr);
+    return false;
+  }
+
+  int pid = 0;
+  int spawn_succeeded = (posix_spawnp(&pid,
+                                      argv_copy[0],
+                                      &file_actions,
+                                      &spawnattr,
+                                      argv_copy,
+                                      vars) == 0);
+
+  FreeEnvVarsArray(vars, varsLen);
+
+  posix_spawn_file_actions_destroy(&file_actions);
+
+  posix_spawnattr_destroy(&spawnattr);
+
+  bool process_handle_valid = pid > 0;
+  if (!spawn_succeeded || !process_handle_valid) {
+    retval = false;
+  } else {
+    if (wait)
+      HANDLE_EINTR(waitpid(pid, 0, 0));
+
+    if (process_handle)
+      *process_handle = pid;
+  }
+
+  return retval;
+}
+
+bool LaunchApp(const CommandLine& cl,
+               bool wait, bool start_hidden, ProcessHandle* process_handle) {
+  // TODO(playmobil): Do we need to respect the start_hidden flag?
+  file_handle_mapping_vector no_files;
+  return LaunchApp(cl.argv(), no_files, wait, process_handle);
+}
+
+void SetCurrentProcessPrivileges(ChildPrivileges privs) {
+
+}
+
+NamedProcessIterator::NamedProcessIterator(const std::wstring& executable_name,
+                                           const ProcessFilter* filter)
+  : executable_name_(executable_name),
+    index_of_kinfo_proc_(0),
+    filter_(filter) {
+  // Get a snapshot of all of my processes (yes, as we loop it can go stale, but
+  // but trying to find where we were in a constantly changing list is basically
+  // impossible.
+
+  int mib[] = { CTL_KERN, KERN_PROC, KERN_PROC_UID, int(geteuid()) };
+
+  // Since more processes could start between when we get the size and when
+  // we get the list, we do a loop to keep trying until we get it.
+  bool done = false;
+  int try_num = 1;
+  const int max_tries = 10;
+  do {
+    // Get the size of the buffer
+    size_t len = 0;
+    if (sysctl(mib, arraysize(mib), NULL, &len, NULL, 0) < 0) {
+      CHROMIUM_LOG(ERROR) << "failed to get the size needed for the process list";
+      kinfo_procs_.resize(0);
+      done = true;
+    } else {
+      size_t num_of_kinfo_proc = len / sizeof(struct kinfo_proc);
+      // Leave some spare room for process table growth (more could show up
+      // between when we check and now)
+      num_of_kinfo_proc += 4;
+      kinfo_procs_.resize(num_of_kinfo_proc);
+      len = num_of_kinfo_proc * sizeof(struct kinfo_proc);
+      // Load the list of processes
+      if (sysctl(mib, arraysize(mib), &kinfo_procs_[0], &len, NULL, 0) < 0) {
+        // If we get a mem error, it just means we need a bigger buffer, so
+        // loop around again.  Anything else is a real error and give up.
+        if (errno != ENOMEM) {
+          CHROMIUM_LOG(ERROR) << "failed to get the process list";
+          kinfo_procs_.resize(0);
+          done = true;
+        }
+      } else {
+        // Got the list, just make sure we're sized exactly right
+        size_t num_of_kinfo_proc = len / sizeof(struct kinfo_proc);
+        kinfo_procs_.resize(num_of_kinfo_proc);
+        done = true;
+      }
+    }
+  } while (!done && (try_num++ < max_tries));
+
+  if (!done) {
+    CHROMIUM_LOG(ERROR) << "failed to collect the process list in a few tries";
+    kinfo_procs_.resize(0);
+  }
+}
+
+NamedProcessIterator::~NamedProcessIterator() {
+}
+
+const ProcessEntry* NamedProcessIterator::NextProcessEntry() {
+  bool result = false;
+  do {
+    result = CheckForNextProcess();
+  } while (result && !IncludeEntry());
+
+  if (result) {
+    return &entry_;
+  }
+
+  return NULL;
+}
+
+bool NamedProcessIterator::CheckForNextProcess() {
+  std::string executable_name_utf8(WideToUTF8(executable_name_));
+
+  std::string data;
+  std::string exec_name;
+
+  for (; index_of_kinfo_proc_ < kinfo_procs_.size(); ++index_of_kinfo_proc_) {
+    kinfo_proc* kinfo = &kinfo_procs_[index_of_kinfo_proc_];
+
+    // Skip processes just awaiting collection
+    if ((kinfo->kp_proc.p_pid > 0) && (kinfo->kp_proc.p_stat == SZOMB))
+      continue;
+
+    int mib[] = { CTL_KERN, KERN_PROCARGS, kinfo->kp_proc.p_pid };
+
+    // Found out what size buffer we need
+    size_t data_len = 0;
+    if (sysctl(mib, arraysize(mib), NULL, &data_len, NULL, 0) < 0) {
+      CHROMIUM_LOG(ERROR) << "failed to figure out the buffer size for a commandline";
+      continue;
+    }
+
+    data.resize(data_len);
+    if (sysctl(mib, arraysize(mib), &data[0], &data_len, NULL, 0) < 0) {
+      CHROMIUM_LOG(ERROR) << "failed to fetch a commandline";
+      continue;
+    }
+
+    // Data starts w/ the full path null termed, so we have to extract just the
+    // executable name from the path.
+
+    size_t exec_name_end = data.find('\0');
+    if (exec_name_end == std::string::npos) {
+      CHROMIUM_LOG(ERROR) << "command line data didn't match expected format";
+      continue;
+    }
+    size_t last_slash = data.rfind('/', exec_name_end);
+    if (last_slash == std::string::npos)
+      exec_name = data.substr(0, exec_name_end);
+    else
+      exec_name = data.substr(last_slash + 1, exec_name_end - last_slash - 1);
+
+    // Check the name
+    if (executable_name_utf8 == exec_name) {
+      entry_.pid = kinfo->kp_proc.p_pid;
+      entry_.ppid = kinfo->kp_eproc.e_ppid;
+      base::strlcpy(entry_.szExeFile, exec_name.c_str(),
+                    sizeof(entry_.szExeFile));
+      // Start w/ the next entry next time through
+      ++index_of_kinfo_proc_;
+      // Done
+      return true;
+    }
+  }
+  return false;
+}
+
+bool NamedProcessIterator::IncludeEntry() {
+  // Don't need to check the name, we did that w/in CheckForNextProcess.
+  if (!filter_)
+    return true;
+  return filter_->Includes(entry_.pid, entry_.ppid);
+}
+
+}  // namespace base