Adds an integration test for uninstalling app list search results.

ash/wm/app_list_controller.h

Index: ash/wm/app_list_controller.h
diff --git a/ash/wm/app_list_controller.h b/ash/wm/app_list_controller.h
index b2c7961a7fcb10ab6a922b1f299292bca2f52446..e3592231e8a2d8dec06eeff0ddc3def0899adf97 100644
--- a/ash/wm/app_list_controller.h
+++ b/ash/wm/app_list_controller.h
@@ -29,6 +29,10 @@ class LocatedEvent;
 }
 
 namespace ash {
+namespace test {
+class AppListControllerTestApi;
+}
+
 namespace internal {
 
 // AppListController is a controller that manages app list UI for shell.
@@ -63,6 +67,8 @@ class AppListController : public ui::EventHandler,
   aura::Window* GetWindow();
 
  private:
+  friend class test::AppListControllerTestApi;
+
   // If |drag_and_drop_host| is not NULL it will be called upon drag and drop
   // operations outside the application list.
   void SetDragAndDropHostOfCurrentAppList(