Implement kiosk multiple apps feature.

chrome/browser/chromeos/app_mode/kiosk_app_manager.cc

Index: chrome/browser/chromeos/app_mode/kiosk_app_manager.cc
diff --git a/chrome/browser/chromeos/app_mode/kiosk_app_manager.cc b/chrome/browser/chromeos/app_mode/kiosk_app_manager.cc
index a37df89e7ee7638bc03f773960b6e5dadaf6f6b4..976eddbaadff9cac1d7641bd738bedc19a51ffc2 100644
--- a/chrome/browser/chromeos/app_mode/kiosk_app_manager.cc
+++ b/chrome/browser/chromeos/app_mode/kiosk_app_manager.cc
@@ -465,7 +465,7 @@ void KioskAppManager::RemoveObserver(KioskAppManagerObserver* observer) {
 extensions::ExternalLoader* KioskAppManager::CreateExternalLoader() {
   if (external_loader_created_) {
     NOTREACHED();
-    return NULL;
+    return nullptr;
   }
   external_loader_created_ = true;
   KioskAppExternalLoader* loader = new KioskAppExternalLoader();
@@ -474,6 +474,19 @@ extensions::ExternalLoader* KioskAppManager::CreateExternalLoader() {
   return loader;
 }
 
+extensions::ExternalLoader*
+KioskAppManager::CreateSecondaryAppExternalLoader() {
+  if (secondary_app_external_loader_created_) {
+    NOTREACHED();
+    return nullptr;
+  }
+  secondary_app_external_loader_created_ = true;
+  KioskAppExternalLoader* secondary_loader = new KioskAppExternalLoader();
+  secondary_app_external_loader_ = secondary_loader->AsWeakPtr();
+
+  return secondary_loader;
+}
+
 void KioskAppManager::InstallFromCache(const std::string& id) {
   const base::DictionaryValue* extension = NULL;
   if (external_cache_->cached_extensions()->GetDictionary(id, &extension)) {
@@ -487,6 +500,25 @@ void KioskAppManager::InstallFromCache(const std::string& id) {
   }
 }
 
+void KioskAppManager::InstallSecondaryApps(
+    const std::vector<std::string>& ids) {
+  if (ids.empty())
+    return;
+
+  scoped_ptr<base::DictionaryValue> prefs(new base::DictionaryValue);
+  for (size_t i = 0; i < ids.size(); ++i) {

[not at google - send to devlin, 2015/08/26 17:53:58]

for (const std::string& it : ids) { ... }

[jennyz, 2015/08/28 18:24:08]

Done.

+    scoped_ptr<base::DictionaryValue> extension_entry(
+        new base::DictionaryValue);
+    extension_entry->SetStringWithoutPathExpansion(
+        extensions::ExternalProviderImpl::kExternalUpdateUrl,
+        extension_urls::GetWebstoreUpdateUrl().spec());
+    extension_entry->SetBoolean(
+        extensions::ExternalProviderImpl::kIsFromWebstore, true);
+    prefs->Set(ids[i], extension_entry.Pass());
+  }
+  secondary_app_external_loader_->SetCurrentAppExtensions(prefs.Pass());
+}
+
 void KioskAppManager::UpdateExternalCache() {
   UpdateAppData();
 }