Display dialog when app install succeeds / fails on Athena

athena/content/app_activity_unittest.cc

Index: athena/content/app_activity_unittest.cc
diff --git a/athena/content/app_activity_unittest.cc b/athena/content/app_activity_unittest.cc
index f265c0ce613a99b537c863485853abe163387caa..f09444de496fdd7075b54f48d155ad186a0ec5c3 100644
--- a/athena/content/app_activity_unittest.cc
+++ b/athena/content/app_activity_unittest.cc
@@ -10,6 +10,7 @@
 #include "athena/extensions/public/extensions_delegate.h"
 #include "athena/resource_manager/public/resource_manager.h"
 #include "athena/test/base/athena_test_base.h"
+#include "extensions/browser/install/extension_install_ui.h"
 #include "extensions/common/extension_set.h"
 #include "ui/aura/window.h"
 #include "ui/views/view.h"
@@ -123,6 +124,10 @@ class TestExtensionsDelegate : public ExtensionsDelegate {
     restart_called_++;
     return true;
   }
+  virtual scoped_ptr<extensions::ExtensionInstallUI> CreateExtensionInstallUI()
+      override {
+    return scoped_ptr<extensions::ExtensionInstallUI>();
+  }
 
  private:
   int unload_called_;