Fix presubmit errors caused by updated depot tools

test/cctest/test-threads.cc

 // Copyright 2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 143 matching lines @@
     for (int i = 0; i < thread_no_; i++) {
       CHECK(!(*refs_)[i].Equals(thread_id));
     }
     CHECK(thread_id.IsValid());
     (*refs_)[thread_no_] = thread_id;
     if (thread_to_start_ != NULL) {
       thread_to_start_->Start();
     }
     semaphore_->Signal();
   }
+
  private:
   i::List<i::ThreadId>* refs_;
   int thread_no_;
   i::Thread* thread_to_start_;
   i::Semaphore* semaphore_;
 };
 
 TEST(ThreadIdValidation) {
   const int kNThreads = 100;
   i::List<ThreadIdValidationThread*> threads(kNThreads);
   i::List<i::ThreadId> refs(kNThreads);
   i::Semaphore* semaphore = i::OS::CreateSemaphore(0);
   ThreadIdValidationThread* prev = NULL;
   for (int i = kNThreads - 1; i >= 0; i--) {
     ThreadIdValidationThread* newThread =
         new ThreadIdValidationThread(prev, &refs, i, semaphore);
     threads.Add(newThread);
     prev = newThread;
     refs.Add(i::ThreadId::Invalid());
   }
   prev->Start();
   for (int i = 0; i < kNThreads; i++) {
     semaphore->Wait();
   }
   for (int i = 0; i < kNThreads; i++) {
     delete threads[i];
   }
 }