[Mac] Use Crashpad in the AlertNotificationService.xpc.

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.h"
 
 #include <CoreFoundation/CoreFoundation.h>
 #include <string.h>
 #include <unistd.h>
 
@@ skipping 72 matching lines @@
       std::vector<std::string> arguments;
       if (!browser_process) {
         // If this is an initial client that's not the browser process, it's
         // important that the new Crashpad handler also not be connected to any
         // existing handler. This argument tells the new Crashpad handler to
         // sever this connection.
         arguments.push_back(
             "--reset-own-crash-exception-port-to-system-default");
       }
 
-      crashpad::CrashpadClient crashpad_client;
-      bool result = crashpad_client.StartHandler(handler_path,
-                                                 database_path,
-                                                 metrics_path,
-                                                 url,
-                                                 process_annotations,
-                                                 arguments,
-                                                 true,
-                                                 false);
+      bool result = GetCrashpadClient().StartHandler(
+          handler_path, database_path, metrics_path, url, process_annotations,
+          arguments, true, false);
 
       // 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() failed, call UseSystemDefaultHandler() to drop the link
       // to the existing handler.
       if (!result && !browser_process) {
         crashpad::CrashpadClient::UseSystemDefaultHandler();
       }
     }  // @autoreleasepool
   }
 
   return database_path;
 }
 
 }  // namespace internal
 }  // namespace crash_reporter