Add extra parameter to BrowserChildProcessCrashed to pass the exit_code at time of crash/termination

chrome/browser/browser_process_impl.cc

Index: chrome/browser/browser_process_impl.cc
diff --git a/chrome/browser/browser_process_impl.cc b/chrome/browser/browser_process_impl.cc
index 254d2ef9e1b4c122577699902f3e7ed3fac8a465..cdb8593f935db86955864a7276a03df35d46ae43 100644
--- a/chrome/browser/browser_process_impl.cc
+++ b/chrome/browser/browser_process_impl.cc
@@ -27,6 +27,7 @@
 #include "base/time/default_tick_clock.h"
 #include "base/trace_event/trace_event.h"
 #include "chrome/browser/chrome_browser_main.h"
+#include "chrome/browser/chrome_child_process_watcher.h"
 #include "chrome/browser/chrome_content_browser_client.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/component_updater/chrome_component_updater_configurator.h"
@@ -273,6 +274,8 @@ void BrowserProcessImpl::StartTearDown() {
   // the IO thread.
   promo_resource_service_.reset();
 
+  child_process_watcher_.reset();
+
 #if !defined(OS_ANDROID)
   // Debugger must be cleaned up before IO thread and NotificationService.
   remote_debugging_server_.reset();
@@ -1061,6 +1064,8 @@ void BrowserProcessImpl::PreMainMessageLoopRun() {
   storage_monitor::StorageMonitor::Create();
 #endif
 
+  child_process_watcher_.reset(new ChromeChildProcessWatcher());
+
   platform_part_->PreMainMessageLoopRun();
 }