Moved IS_EPHEMERAL flag to extension prefs

extensions/common/extension.cc

Index: extensions/common/extension.cc
diff --git a/extensions/common/extension.cc b/extensions/common/extension.cc
index 39f2fb796e00a5e16a5ec9f8fc79c98c2ecda684..97d7e455e862f78603e1ab81576013a0cfc03424 100644
--- a/extensions/common/extension.cc
+++ b/extensions/common/extension.cc
@@ -331,12 +331,12 @@ bool Extension::RequiresSortOrdinal() const {
 
 bool Extension::ShouldDisplayInAppLauncher() const {
   // Only apps should be displayed in the launcher.
-  return is_app() && display_in_launcher_ && !is_ephemeral();
+  return is_app() && display_in_launcher_;
 }
 
 bool Extension::ShouldDisplayInNewTabPage() const {
   // Only apps should be displayed on the NTP.
-  return is_app() && display_in_new_tab_page_ && !is_ephemeral();
+  return is_app() && display_in_new_tab_page_;
 }
 
 bool Extension::ShouldDisplayInExtensionSettings() const {