[asan] Workaround to avoid hangs in Chromium tests

[vitalybuka]

Summary

I will investigate after unblocking compiler roll.

compiler-rt/trunk/lib/sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc

 void ThreadSuspender::KillAllThreads() {
   for (uptr i = 0; i < suspended_threads_list_.ThreadCount(); i++)
     internal_ptrace(PTRACE_KILL, suspended_threads_list_.GetThreadID(i),
                     nullptr, nullptr);
 }
 
 bool ThreadSuspender::SuspendAllThreads() {
   ThreadLister thread_lister(pid_);
-  bool retry;
+  bool retry = true;
   InternalMmapVector<tid_t> threads;
   threads.reserve(128);
-  do {
+  for (int i = 0; i < 30 && retry; ++i) {
     retry = false;
     switch (thread_lister.ListThreads(&threads)) {
       case ThreadLister::Error:
         ResumeAllThreads();
         return false;
       case ThreadLister::Incomplete:
         retry = true;
         break;
       case ThreadLister::Ok:
         break;
     }
     for (tid_t tid : threads)
       if (SuspendThread(tid))
         retry = true;
-  } while (retry);
+  };
   return suspended_threads_list_.ThreadCount();
 }
 
 // Pointer to the ThreadSuspender instance for use in signal handler.
 static ThreadSuspender *thread_suspender_instance = nullptr;
 
 // Synchronous signals that should not be blocked.
 static const int kSyncSignals[] = { SIGABRT, SIGILL, SIGFPE, SIGSEGV, SIGBUS,