Optimize promotion of ephemeral apps

extensions/common/extension.h

Index: extensions/common/extension.h
diff --git a/extensions/common/extension.h b/extensions/common/extension.h
index e3d5dfcd80a80e0ad1437c56980d225102d0a0f4..797c906b40dd007382baf2744d94faa1597db3e7 100644
--- a/extensions/common/extension.h
+++ b/extensions/common/extension.h
@@ -508,12 +508,17 @@ struct InstalledExtensionInfo {
   // True if the extension is being updated; false if it is being installed.
   bool is_update;
 
+  // True if the extension was previously installed ephemerally and is now
+  // a regular installed extension.
+  bool from_ephemeral;
+
   // The name of the extension prior to this update. Will be empty if
   // |is_update| is false.
   std::string old_name;
 
   InstalledExtensionInfo(const Extension* extension,
                          bool is_update,
+                         bool from_ephemeral,
                          const std::string& old_name);
 };