ntp4: app install improvements

chrome/browser/ui/webui/ntp/app_launcher_handler.h

Index: chrome/browser/ui/webui/ntp/app_launcher_handler.h
diff --git a/chrome/browser/ui/webui/ntp/app_launcher_handler.h b/chrome/browser/ui/webui/ntp/app_launcher_handler.h
index 1559d24bf5270cd7f0aa862c6d24ef7ec4a9a7ef..fedeb3cd816564ba33fe43b0486958edf9d56b28 100644
--- a/chrome/browser/ui/webui/ntp/app_launcher_handler.h
+++ b/chrome/browser/ui/webui/ntp/app_launcher_handler.h
@@ -190,6 +190,10 @@ class AppLauncherHandler : public WebUIMessageHandler,
   // refreshing. This is useful when making many batch updates to avoid flicker.
   bool ignore_changes_;
 
+  // When true, we have attempted to install a bookmark app, and are still
+  // waiting to hear about success or failure from the extensions system.
+  bool attempted_bookmark_app_install_;
+
   // Hold state for favicon requests.
   CancelableRequestConsumerTSimple<AppInstallInfo*> favicon_consumer_;