Update from https://crrev.com/306655

sandbox/linux/tests/unit_tests.cc

 // Copyright (c) 2012 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 <fcntl.h>
 #include <poll.h>
 #include <signal.h>
 #include <stdio.h>
 #include <sys/resource.h>
 #include <sys/time.h>
@@ skipping 245 matching lines @@
   const char* expected_msg = static_cast<const char*>(aux);
 
   bool subprocess_terminated_normally = WIFEXITED(status);
   ASSERT_TRUE(subprocess_terminated_normally) << "Exit status: " << status
                                               << " " << details;
   int subprocess_exit_status = WEXITSTATUS(status);
   ASSERT_EQ(1, subprocess_exit_status) << details;
 
   bool subprocess_exited_without_matching_message =
       msg.find(expected_msg) == std::string::npos;
+
+// In official builds CHECK messages are dropped, so look for SIGABRT.
+// See https://code.google.com/p/chromium/issues/detail?id=437312
+#if defined(OFFICIAL_BUILD) && defined(NDEBUG) && !defined(OS_ANDROID)
+  if (subprocess_exited_without_matching_message) {
+    static const char kSigAbortMessage[] = "Received signal 6";
+    subprocess_exited_without_matching_message =
+        msg.find(kSigAbortMessage) == std::string::npos;
+  }
+#endif
   EXPECT_FALSE(subprocess_exited_without_matching_message) << details;
 }
 
 void UnitTests::DeathSEGVMessage(int status,
                                  const std::string& msg,
                                  const void* aux) {
   std::string details(TestFailedMessage(msg));
   const char* expected_msg = static_cast<const char*>(aux);
 
 #if defined(OS_ANDROID)
@@ skipping 41 matching lines @@
   fflush(stderr);
   _exit(kExitWithAssertionFailure);
 }
 
 void UnitTests::IgnoreThisTest() {
   fflush(stderr);
   _exit(kIgnoreThisTest);
 }
 
 }  // namespace