Update Crashpad to 4a2043ea65e2641ef1a921801c0aaa15ada02fc7

third_party/crashpad/crashpad/util/thread/thread_posix.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,
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
 #include "util/thread/thread.h"
 
+#include <errno.h>
+
 #include "base/logging.h"
 
 namespace crashpad {
 
 void Thread::Start() {
   DCHECK(!platform_thread_);
-  int rv = pthread_create(&platform_thread_, nullptr, ThreadEntryThunk, this);
-  PCHECK(0 == rv);
+  errno = pthread_create(&platform_thread_, nullptr, ThreadEntryThunk, this);
+  PCHECK(errno == 0) << "pthread_create";
 }
 
 void Thread::Join() {
   DCHECK(platform_thread_);
-  int rv = pthread_join(platform_thread_, nullptr);
-  PCHECK(0 == rv);
+  errno = pthread_join(platform_thread_, nullptr);
+  PCHECK(errno == 0) << "pthread_join";
   platform_thread_ = 0;
 }
 
 // static
 void* Thread::ThreadEntryThunk(void* argument) {
   Thread* self = reinterpret_cast<Thread*>(argument);
   self->ThreadMain();
   return nullptr;
 }
 
 }  // namespace crashpad