Make sideloaded (externally installed) extensions display webstore info

chrome/browser/extensions/webstore_standalone_installer.cc

Index: chrome/browser/extensions/webstore_standalone_installer.cc
diff --git a/chrome/browser/extensions/webstore_standalone_installer.cc b/chrome/browser/extensions/webstore_standalone_installer.cc
index 48661896e328cb674bda9971e21aefba56c04871..f79866f12bc2bac8d46cf05b25f85250d380425f 100644
--- a/chrome/browser/extensions/webstore_standalone_installer.cc
+++ b/chrome/browser/extensions/webstore_standalone_installer.cc
@@ -21,15 +21,6 @@ using content::WebContents;
 
 namespace extensions {
 
-const char kManifestKey[] = "manifest";
-const char kIconUrlKey[] = "icon_url";
-const char kLocalizedNameKey[] = "localized_name";
-const char kLocalizedDescriptionKey[] = "localized_description";
-const char kUsersKey[] = "users";
-const char kShowUserCountKey[] = "show_user_count";
-const char kAverageRatingKey[] = "average_rating";
-const char kRatingCountKey[] = "rating_count";
-
 const char kInvalidWebstoreItemId[] = "Invalid Chrome Web Store item ID";
 const char kWebstoreRequestError[] =
     "Could not fetch data from the Chrome Web Store";