mac: Restart crashpad_handler from the initial client if it dies

client/crashpad_client_win.cc

 // Copyright 2015 The Crashpad Authors. All rights reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //     http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
@@ skipping 108 matching lines @@
 }
 
 CrashpadClient::~CrashpadClient() {
 }
 
 bool CrashpadClient::StartHandler(
     const base::FilePath& handler,
     const base::FilePath& database,
     const std::string& url,
     const std::map<std::string, std::string>& annotations,
-    const std::vector<std::string>& arguments) {
+    const std::vector<std::string>& arguments,
+    bool restartable) {
   DCHECK(ipc_pipe_.empty());
 
   std::string ipc_pipe =
       base::StringPrintf("\\\\.\\pipe\\crashpad_%d_", GetCurrentProcessId());
   for (int index = 0; index < 16; ++index) {
     ipc_pipe.append(1, static_cast<char>(base::RandInt('A', 'Z')));
   }
   ipc_pipe_ = base::UTF8ToUTF16(ipc_pipe);
 
   std::wstring command_line;
@@ skipping 163 matching lines @@
       reinterpret_cast<crashpad::WinVMAddress>(&exception_pointers);
 
   bool set_event_result = !!SetEvent(g_signal_non_crash_dump);
   PLOG_IF(ERROR, !set_event_result) << "SetEvent";
 
   DWORD wfso_result = WaitForSingleObject(g_non_crash_dump_done, INFINITE);
   PLOG_IF(ERROR, wfso_result != WAIT_OBJECT_0) << "WaitForSingleObject";
 }
 
 }  // namespace crashpad