Restart crashpad_handler on Mac if it exits unexpectedly

components/crash/content/app/crashpad_mac.mm

 // Copyright 2015 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/crash/content/app/crashpad_mac.h"
 
 #include <string.h>
 #include <unistd.h>
 
 #include <algorithm>
@@ skipping 135 matching lines @@
         // sever this connection.
         arguments.push_back(
             "--reset-own-crash-exception-port-to-system-default");
       }
 
       bool result = crashpad_client.StartHandler(handler_path,
                                                  database_path,
                                                  url,
                                                  process_annotations,
                                                  arguments,
-                                                 false);
+                                                 true);
       if (result) {
         result = crashpad_client.UseHandler();
       }
 
       // If this is an initial client that's not the browser process, it's
       // important to sever the connection to any existing handler. If
       // StartHandler() or UseHandler() failed, call UseSystemDefaultHandler()
       // in that case to drop the link to the existing handler.
       if (!result && !browser_process) {
         crashpad::CrashpadClient::UseSystemDefaultHandler();
@@ skipping 107 matching lines @@
 
   struct {
     bool operator()(const UploadedReport& a, const UploadedReport& b) {
       return a.creation_time >= b.creation_time;
     }
   } sort_by_time;
   std::sort(uploaded_reports->begin(), uploaded_reports->end(), sort_by_time);
 }
 
 }  // namespace crash_reporter