Fix sort order of unlaunched apps on app list start page.

chrome/browser/ui/app_list/search/app_search_provider.cc

Index: chrome/browser/ui/app_list/search/app_search_provider.cc
diff --git a/chrome/browser/ui/app_list/search/app_search_provider.cc b/chrome/browser/ui/app_list/search/app_search_provider.cc
index b81afa693e3c73a6c31565274c3f14b41eee3799..f5307d56baa29c0acad2bd9a474f734f1f75c29a 100644
--- a/chrome/browser/ui/app_list/search/app_search_provider.cc
+++ b/chrome/browser/ui/app_list/search/app_search_provider.cc
@@ -112,9 +112,15 @@ void AppSearchProvider::UpdateResults() {
 
       // Use the app list order to tiebreak apps that have never been launched.
       if (app->last_launch_time().is_null()) {
+        auto it = id_to_app_list_index.find(app->app_id());
+        size_t app_list_index =

[Matt Giuca, 2015/02/27 06:03:53]

// If it's in a folder, it won't be in |id_to_app_list_index|. Rank those as if
they are at the end of the list.

[calamity, 2015/03/02 00:50:52]

Done.

+            it == id_to_app_list_index.end() ? apps_.size() : (*it).second;
+        if (app_list_index > apps_.size())
+          app_list_index = apps_.size();
+
         result->set_relevance(
             kUnlaunchedAppRelevanceStepSize *
-            (apps_.size() - id_to_app_list_index[app->app_id()]));
+            (apps_.size() - app_list_index));
       } else {
         result->UpdateFromLastLaunched(clock_->Now(), app->last_launch_time());
       }