Enable --wait-for-debugger for the browser process....

chrome/browser/browser_main.cc

 // Copyright (c) 2010 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 "chrome/browser/browser_main.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
@@ skipping 43 matching lines @@
 #include "chrome/browser/profile_manager.h"
 #include "chrome/browser/renderer_host/resource_dispatcher_host.h"
 #include "chrome/browser/search_engines/template_url_model.h"
 #include "chrome/browser/search_engines/template_url_prepopulate_data.h"
 #include "chrome/browser/shell_integration.h"
 #if !defined(OS_WIN)
 #include "chrome/browser/translate/translate_manager.h"
 #else
 #include "chrome/browser/translate/translate_manager2.h"
 #endif
+#include "chrome/common/child_process.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/json_pref_store.h"
 #include "chrome/common/jstemplate_builder.h"
 #include "chrome/common/main_function_params.h"
 #include "chrome/common/net/net_resource_provider.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/result_codes.h"
 #include "chrome/installer/util/google_update_settings.h"
@@ skipping 1292 matching lines @@
     // See issue 40144.
     profile->GetExtensionsService()->InitEventRouters();
   }
 
 #if defined(OS_WIN)
   // We check this here because if the profile is OTR (chromeos possibility)
   // it won't still be accessible after browser is destroyed.
   bool record_search_engine = is_first_run && !profile->IsOffTheRecord();
 #endif
 
+    // ChildProcess:: is a misnomer unless you consider context.  Use
+    // of --wait-for-debugger only makes sense when Chrome itself is a
+    // child process (e.g. when launched by PyAuto).
+  if (parsed_command_line.HasSwitch(switches::kWaitForDebugger)) {
+    ChildProcess::WaitForDebugger(L"Browser");
+  }
+
+
   int result_code = ResultCodes::NORMAL_EXIT;
   if (parameters.ui_task) {
     // We are in test mode. Run one task and enter the main message loop.
     if (pool)
       pool->Recycle();
     parameters.ui_task->Run();
     delete parameters.ui_task;
   } else {
     // We are in regular browser boot sequence. Open initial stabs and enter
     // the main message loop.
@@ skipping 55 matching lines @@
 
   metrics->Stop();
 
   // browser_shutdown takes care of deleting browser_process, so we need to
   // release it.
   ignore_result(browser_process.release());
   browser_shutdown::Shutdown();
 
   return result_code;
 }