Download and cache kiosk app extension when it is added via kiosk mamangement ui.

chrome/browser/chromeos/app_mode/kiosk_app_data.cc

Index: chrome/browser/chromeos/app_mode/kiosk_app_data.cc
diff --git a/chrome/browser/chromeos/app_mode/kiosk_app_data.cc b/chrome/browser/chromeos/app_mode/kiosk_app_data.cc
index de83ec635a54a8c5be640c98336d095ab7669e4c..25f229d9190b6ae8b59ca8f44f2f979d401ce0a1 100644
--- a/chrome/browser/chromeos/app_mode/kiosk_app_data.cc
+++ b/chrome/browser/chromeos/app_mode/kiosk_app_data.cc
@@ -259,6 +259,7 @@ KioskAppData::KioskAppData(KioskAppDataDelegate* delegate,
                            const std::string& user_id)
     : delegate_(delegate),
       status_(STATUS_INIT),
+      crx_cache_status_(STATUS_INIT),
       app_id_(app_id),
       user_id_(user_id) {
 }
@@ -316,6 +317,10 @@ bool KioskAppData::IsLoading() const {
   return status_ == STATUS_LOADING;
 }
 
+bool KioskAppData::IsCrxCacheLoading() const {
+  return crx_cache_status_ == STATUS_LOADING;
+}
+
 void KioskAppData::SetStatus(Status status) {
   if (status_ == status)
     return;
@@ -338,6 +343,33 @@ void KioskAppData::SetStatus(Status status) {
   };
 }
 
+void KioskAppData::SetCrxCacheStatus(Status crx_cache_status) {
+  if (crx_cache_status_ == crx_cache_status)
+    return;
+
+  Status old_cache_status = crx_cache_status_;
+  crx_cache_status_ = crx_cache_status;
+
+  if (!delegate_)
+    return;
+
+  switch (crx_cache_status_) {
+    case STATUS_INIT:
+      break;
+    case STATUS_LOADING:
+      delegate_->OnKioskAppDataChanged(app_id_);
+      break;
+    case STATUS_LOADED:
+      if (old_cache_status == STATUS_LOADING)
+        delegate_->OnKioskAppDataChanged(app_id_);
+      break;
+    case STATUS_ERROR:
+      if (old_cache_status == STATUS_LOADING)
+        delegate_->OnKioskAppDataLoadFailure(app_id_);
+      break;
+  }
+}
+
 net::URLRequestContextGetter* KioskAppData::GetRequestContextGetter() {
   return g_browser_process->system_request_context();
 }