Disable ephemeral apps after they stop running

chrome/browser/apps/ephemeral_app_launcher.cc

Index: chrome/browser/apps/ephemeral_app_launcher.cc
diff --git a/chrome/browser/apps/ephemeral_app_launcher.cc b/chrome/browser/apps/ephemeral_app_launcher.cc
index 92f7bd81ae5f87b73c53a8d4a7a21b2850661a49..78e2ec55be10a3e889db30fc80fc90a2beb1684e 100644
--- a/chrome/browser/apps/ephemeral_app_launcher.cc
+++ b/chrome/browser/apps/ephemeral_app_launcher.cc
@@ -224,17 +224,17 @@ bool EphemeralAppLauncher::CanLaunchInstalledApp(
 }
 
 void EphemeralAppLauncher::EnableInstalledApp(const Extension* extension) {
+  // Keep this object alive until the enable flow is complete. Either
+  // ExtensionEnableFlowFinished() or ExtensionEnableFlowAborted() will be
+  // called.
+  AddRef();
+
   extension_enable_flow_.reset(
       new ExtensionEnableFlow(profile(), extension->id(), this));
   if (web_contents())
     extension_enable_flow_->StartForWebContents(web_contents());
   else
     extension_enable_flow_->StartForNativeWindow(parent_window_);
-
-  // Keep this object alive until the enable flow is complete. Either
-  // ExtensionEnableFlowFinished() or ExtensionEnableFlowAborted() will be
-  // called.
-  AddRef();
 }
 
 void EphemeralAppLauncher::MaybeLaunchApp() {