Close the App Info Dialog if the app or profile becomes invalid

chrome/browser/ui/views/apps/app_info_dialog/app_info_dialog_views.h

Index: chrome/browser/ui/views/apps/app_info_dialog/app_info_dialog_views.h
diff --git a/chrome/browser/ui/views/apps/app_info_dialog/app_info_dialog_views.h b/chrome/browser/ui/views/apps/app_info_dialog/app_info_dialog_views.h
index 92be146a16f2f29097207625028f349104dc9852..d1aebbaa76cde9d0b4be631363f2ac4a2c0ce603 100644
--- a/chrome/browser/ui/views/apps/app_info_dialog/app_info_dialog_views.h
+++ b/chrome/browser/ui/views/apps/app_info_dialog/app_info_dialog_views.h
@@ -5,6 +5,7 @@
 #ifndef CHROME_BROWSER_UI_VIEWS_APPS_APP_INFO_DIALOG_APP_INFO_DIALOG_VIEWS_H_
 #define CHROME_BROWSER_UI_VIEWS_APPS_APP_INFO_DIALOG_APP_INFO_DIALOG_VIEWS_H_
 
+#include "extensions/browser/extension_registry_observer.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/views/view.h"
 
@@ -12,6 +13,7 @@ class Profile;
 
 namespace extensions {
 class Extension;
+class ExtensionRegistry;
 }
 
 namespace views {
@@ -20,7 +22,8 @@ class ScrollView;
 
 // View the information about a particular chrome application.
 
-class AppInfoDialog : public views::View {
+class AppInfoDialog : public views::View,
+                      public extensions::ExtensionRegistryObserver {
  public:
   AppInfoDialog(gfx::NativeWindow parent_window,
                 Profile* profile,
@@ -28,11 +31,28 @@ class AppInfoDialog : public views::View {
   virtual ~AppInfoDialog();
 
  private:
+  // Closes the dialog.
+  void Close();
+
+  void StartObservingExtensionRegistry();
+  void StopObservingExtensionRegistry();
+
+  // Overridden from extensions::ExtensionRegistryObserver:
+  virtual void OnExtensionUninstalled(
+      content::BrowserContext* browser_context,
+      const extensions::Extension* extension,
+      extensions::UninstallReason reason) OVERRIDE;
+  virtual void OnShutdown(extensions::ExtensionRegistry* registry) OVERRIDE;
+
   // UI elements of the dialog.
   views::View* dialog_header_;
   views::ScrollView* dialog_body_;
   views::View* dialog_footer_;
 
+  Profile* profile_;
+  std::string app_id_;
+  extensions::ExtensionRegistry* extension_registry_;
+
   DISALLOW_COPY_AND_ASSIGN(AppInfoDialog);
 };