Replace Increment/DecrementKeepAliveCount by ScopedKeepAlives

chrome/browser/ui/panels/panel.cc

Index: chrome/browser/ui/panels/panel.cc
diff --git a/chrome/browser/ui/panels/panel.cc b/chrome/browser/ui/panels/panel.cc
index ca0541f4d724d8bba9df84dcaf8550a3d1b37587..aea81d318d2c5ba2a8681595d7ab810c94c51c36 100644
--- a/chrome/browser/ui/panels/panel.cc
+++ b/chrome/browser/ui/panels/panel.cc
@@ -21,6 +21,8 @@
 #include "chrome/browser/extensions/window_controller.h"
 #include "chrome/browser/extensions/window_controller_list.h"
 #include "chrome/browser/lifetime/application_lifetime.h"
+#include "chrome/browser/lifetime/keep_alive_types.h"
+#include "chrome/browser/lifetime/scoped_keep_alive.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/sessions/session_tab_helper.h"
 #include "chrome/browser/task_management/web_contents_tags.h"
@@ -166,10 +168,6 @@ bool PanelExtensionWindowController::IsVisibleToExtension(
 
 Panel::~Panel() {
   DCHECK(!collection_);
-#if !defined(USE_AURA)
-  // Invoked by native panel destructor. Do not access native_panel_ here.
-  chrome::DecrementKeepAliveCount();  // Remove shutdown prevention.
-#endif
 }
 
 PanelManager* Panel::manager() const {
@@ -560,8 +558,12 @@ void Panel::Initialize(const GURL& url,
 
 #if !defined(USE_AURA)
   // Keep alive for AURA has been moved to panel_view.
+  // TODO(dgn): Ash for windows is being removed. Should the keep_alive in
+  // panel view be moved back here? Reverting
+  // https://codereview.chromium.org/173403002 ?
+
   // Prevent the browser process from shutting down while this window is open.
-  chrome::IncrementKeepAliveCount();
+  keep_alive_.reset(new ScopedKeepAlive(KeepAliveOrigin::PANEL));
 #endif
 
   UpdateAppIcon();