Replace BrowserProces::AddRefModule/RemoveModule by ScopedKeepAlive

chrome/browser/browser_process_impl.h

Index: chrome/browser/browser_process_impl.h
diff --git a/chrome/browser/browser_process_impl.h b/chrome/browser/browser_process_impl.h
index 0bba81db6d6bf289eb33fbd9e87cc8d38ba531a9..e7e849985221517aba967a6a879b37cad22b9978 100644
--- a/chrome/browser/browser_process_impl.h
+++ b/chrome/browser/browser_process_impl.h
@@ -114,8 +114,8 @@ class BrowserProcessImpl : public BrowserProcess,
   void CreateDevToolsHttpProtocolHandler(const std::string& ip,
                                          uint16_t port) override;
   void CreateDevToolsAutoOpener() override;
-  unsigned int AddRefModule() override;
-  unsigned int ReleaseModule() override;
+  void Pin() override;
+  void Unpin() override;
   bool IsShuttingDown() override;
   printing::PrintJobManager* print_job_manager() override;
   printing::PrintPreviewDialogController* print_preview_dialog_controller()
@@ -242,8 +242,7 @@ class BrowserProcessImpl : public BrowserProcess,
   bool created_safe_browsing_service_;
   scoped_refptr<safe_browsing::SafeBrowsingService> safe_browsing_service_;
 
-  unsigned int module_ref_count_;
-  bool did_start_;
+  bool shutting_down_;
 
   bool tearing_down_;