Add ExcServerCopyState()

handler/mac/crash_report_exception_handler.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 175 matching lines @@
 
     UUID uuid;
     database_status = database_->FinishedWritingCrashReport(new_report, &uuid);
     if (database_status != CrashReportDatabase::kNoError) {
       return KERN_FAILURE;
     }
 
     upload_thread_->ReportPending();
   }
 
+  bool forwarded = false;
   if (client_options.system_crash_reporter_forwarding != TriState::kDisabled &&
       (exception == EXC_CRASH ||
        exception == EXC_RESOURCE ||
        exception == EXC_GUARD)) {
     // Don’t forward simulated exceptions such as kMachExceptionSimulated to the
     // system crash reporter. Only forward the types of exceptions that it would
     // receive under normal conditions. Although the system crash reporter is
     // able to deal with other exceptions including simulated ones, forwarding
     // them to the system crash reporter could present the system’s crash UI for
     // processes that haven’t actually crashed, and could result in reports not
@@ skipping 30 matching lines @@
           thread,
           task,
           exception,
           code,
           code_count,
           &flavor_forward,
           old_state,
           old_state_count,
           new_state_forward_count ? &new_state_forward[0] : nullptr,
           &new_state_forward_count);
-      MACH_LOG_IF(WARNING, kr != KERN_SUCCESS, kr)
-          << "UniversalExceptionRaise " << kSystemCrashReporterServiceName;
+      if (kr == KERN_SUCCESS) {
+        forwarded = true;
+      } else {
+        MACH_LOG(WARNING, kr)
+            << "UniversalExceptionRaise " << kSystemCrashReporterServiceName;
+      }
     }
   }
 
+  if (!forwarded) {
+    ExcServerCopyState(
+        behavior, old_state, old_state_count, new_state, new_state_count);
+  }
+
   return ExcServerSuccessfulReturnValue(behavior, false);
 }
 
 }  // namespace crashpad