Fix issue 174250, crash when reloading packaged app.

chrome/browser/ui/extensions/shell_window.cc

Index: chrome/browser/ui/extensions/shell_window.cc
diff --git a/chrome/browser/ui/extensions/shell_window.cc b/chrome/browser/ui/extensions/shell_window.cc
index 8be9cce5aec0a8d056b07780de034b8454e03728..de56138cd0fa2b343ec853849060ebb89793db84 100644
--- a/chrome/browser/ui/extensions/shell_window.cc
+++ b/chrome/browser/ui/extensions/shell_window.cc
@@ -573,8 +573,10 @@ void ShellWindow::Observe(int type,
       const extensions::Extension* unloaded_extension =
           content::Details<extensions::UnloadedExtensionInfo>(
               details)->extension;
-      if (extension_ == unloaded_extension)
+      if (extension_ == unloaded_extension) {

[benwells, 2013/02/10 23:19:36]

Are there other cases where we should remove the window from the cache earlier?
E.g. when the page is unloaded.

[jeremya, 2013/02/10 23:58:44]

Yep, good catch. Fixed.

         native_app_window_->Close();
+        extensions::ShellWindowRegistry::Get(profile_)->RemoveShellWindow(this);
+      }
       break;
     }
     case chrome::NOTIFICATION_APP_TERMINATING: