Abort if BrowserMainLoops fails to start a browser thread

content/browser/browser_main_loop.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 "content/browser/browser_main_loop.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
 #include "base/files/file_util.h"
@@ skipping 698 matching lines @@
       case BrowserThread::ID_COUNT:
       default:
         NOTREACHED();
         break;
     }
 
     BrowserThread::ID id = static_cast<BrowserThread::ID>(thread_id);
 
     if (thread_to_start) {
       (*thread_to_start).reset(new BrowserProcessSubThread(id));
-      (*thread_to_start)->StartWithOptions(options);
+      if (!(*thread_to_start)->StartWithOptions(options)) {
+        LOG(FATAL) << "Failed to start the browser thread: id == " << id;
+      }
     } else {
       NOTREACHED();
     }
 
     TRACE_EVENT_END0("startup", "BrowserMainLoop::CreateThreads:start");
   }
   created_threads_ = true;
   return result_code_;
 }
 
@@ skipping 464 matching lines @@
                              &BrowserMainLoop::EndStartupTracing);
 }
 
 void BrowserMainLoop::EndStartupTracing() {
   is_tracing_startup_ = false;
   TracingController::GetInstance()->DisableRecording(
       startup_trace_file_, base::Bind(&OnStoppedStartupTracing));
 }
 
 }  // namespace content