Do not show the activity widget in ActivityManager::AddActivity

athena/main/url_search_provider.cc

Index: athena/main/url_search_provider.cc
diff --git a/athena/main/url_search_provider.cc b/athena/main/url_search_provider.cc
index 5ca3b7f7b5fa8692bff8c576d658e03c3c82b604..23b34f83d50150fe32b8d25741ec1fd39a596072 100644
--- a/athena/main/url_search_provider.cc
+++ b/athena/main/url_search_provider.cc
@@ -4,6 +4,7 @@
 
 #include "athena/main/url_search_provider.h"
 
+#include "athena/activity/public/activity.h"
 #include "athena/activity/public/activity_factory.h"
 #include "athena/content/public/scheme_classifier_factory.h"
 #include "base/strings/utf_string_conversions.h"
@@ -171,8 +172,9 @@ class UrlSearchResult : public app_list::SearchResult {
  private:
   // Overriddenn from app_list::SearchResult:
   virtual void Open(int event_flags) OVERRIDE {
-    ActivityFactory::Get()->CreateWebActivity(
+    Activity* activity = ActivityFactory::Get()->CreateWebActivity(
         browser_context_, base::string16(), match_.destination_url);
+    Activity::Show(activity);
   }
 
   void UpdateIcon() {