Bring back the retry limit to 3.

base/test/launcher/test_launcher.cc

 // Copyright 2013 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 "base/test/launcher/test_launcher.h"
 
 #if defined(OS_POSIX)
 #include <fcntl.h>
 #endif
 
@@ skipping 325 matching lines @@
                       this,
                       &TestLauncher::OnOutputTimeout),
       parallel_jobs_(parallel_jobs) {
   if (BotModeEnabled()) {
     fprintf(stdout,
             "Enabling defaults optimized for continuous integration bots.\n");
     fflush(stdout);
 
     // Enable test retries by default for bots. This can be still overridden
     // from command line using --test-launcher-retry-limit flag.
-    // TODO(sergeyberezin): decrease retry_limit_ back to 3 when the
-    // ignorer_bot is deployed to automatically disable flaky tests.
-    retry_limit_ = 12;
+    retry_limit_ = 3;
   } else {
     // Default to serial test execution if not running on a bot. This makes it
     // possible to disable stdio redirection and can still be overridden with
     // --test-launcher-jobs flag.
     parallel_jobs_ = 1;
   }
 }
 
 TestLauncher::~TestLauncher() {
   if (worker_pool_owner_)
@@ skipping 732 matching lines @@
 
     g_live_processes.Get().erase(process_handle);
   }
 
   base::CloseProcessHandle(process_handle);
 
   return exit_code;
 }
 
 }  // namespace base