When restoring kiosk app after crash, skip app installation steps

chrome/browser/chromeos/app_mode/app_launch_utils.cc

Index: chrome/browser/chromeos/app_mode/app_launch_utils.cc
diff --git a/chrome/browser/chromeos/app_mode/app_launch_utils.cc b/chrome/browser/chromeos/app_mode/app_launch_utils.cc
index a60d4b232719c67aaa6a885c4d3cc121cdd8b758..2e24a00a8f5451c74b3bda94c7de0b23e275617b 100644
--- a/chrome/browser/chromeos/app_mode/app_launch_utils.cc
+++ b/chrome/browser/chromeos/app_mode/app_launch_utils.cc
@@ -43,6 +43,13 @@ class AppLaunchManager : public StartupAppLauncher::Delegate {
     // See comments above. Network is assumed to be online here.
     return true;
   }
+  bool ShouldUpdateCacheOnNetworkReady() override {
+    // Given that this delegate does not reliably report whether the network is
+    // ready, avoid making app update checks - this might take a while if
+    // network is not online. Also, during crash-restart, we should continue
+    // with the same app version as the restored session.
+    return false;
+  }
   void OnLoadingOAuthFile() override {}
   void OnInitializingTokenService() override {}
   void OnInstallingApp() override {}