Assert that new renderer processes aren't created during shutdown.

content/browser/browser_main.cc

 // Copyright (c) 2011 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.h"
 
 #include "base/allocator/allocator_shim.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
@@ skipping 234 matching lines @@
   system_monitor_.reset(new base::SystemMonitor);
   hi_res_timer_manager_.reset(new HighResolutionTimerManager);
 
   InitializeMainThread();
 
   network_change_notifier_.reset(net::NetworkChangeNotifier::Create());
 
   PostMainMessageLoopStart();
 }
 
+static bool g_exited_main_message_loop = false;
+
 void BrowserMainParts::RunMainMessageLoopParts() {
   PreMainMessageLoopRun();
 
   TRACE_EVENT_BEGIN_ETW("BrowserMain:MESSAGE_LOOP", 0, "");
   // If the UI thread blocks, the whole UI is unresponsive.
   // Do not allow disk IO from the UI thread.
   base::ThreadRestrictions::SetIOAllowed(false);
   MainMessageLoopRun();
   TRACE_EVENT_END_ETW("BrowserMain:MESSAGE_LOOP", 0, "");
 
+  g_exited_main_message_loop = true;
+
   PostMainMessageLoopRun();
 }
 
 void BrowserMainParts::InitializeMainThread() {
   const char* kThreadName = "CrBrowserMain";
   base::PlatformThread::SetName(kThreadName);
   main_message_loop().set_thread_name(kThreadName);
 
   // Register the main thread by instantiating it, but don't call any methods.
   main_thread_.reset(new BrowserThread(BrowserThread::UI,
@@ skipping 75 matching lines @@
   MessageLoopForUI::current()->Run(NULL);
 #endif
 }
 
 void BrowserMainParts::PostMainMessageLoopRun() {
 }
 
 void BrowserMainParts::ToolkitInitialized() {
 }
 
+bool ExitedMainMessageLoop() {
+  return g_exited_main_message_loop;
+}
+
 }  // namespace content
 
 // Main routine for running as the Browser process.
 int BrowserMain(const MainFunctionParams& parameters) {
   TRACE_EVENT_BEGIN_ETW("BrowserMain", 0, "");
 
   NotificationService main_notification_service;
 
   scoped_ptr<content::BrowserMainParts> parts(
       content::GetContentClient()->browser()->CreateBrowserMainParts(
@@ skipping 50 matching lines @@
   base::win::ScopedCOMInitializer com_initializer;
 #endif  // OS_WIN
 
   base::StatisticsRecorder statistics;
 
   parts->RunMainMessageLoopParts();
 
   TRACE_EVENT_END_ETW("BrowserMain", 0, 0);
   return parts->result_code();
 }