Fix for non-sticky defaults bug. Added a bunch of tests.

chrome/browser/intents/web_intents_registry.cc

Index: chrome/browser/intents/web_intents_registry.cc
diff --git a/chrome/browser/intents/web_intents_registry.cc b/chrome/browser/intents/web_intents_registry.cc
index 62d0789ad404cab524d70358bdabbc5322e9423d..5b332a2d4efa4a2b15ee22981516e73eff4283e2 100644
--- a/chrome/browser/intents/web_intents_registry.cc
+++ b/chrome/browser/intents/web_intents_registry.cc
@@ -289,6 +289,7 @@ void WebIntentsRegistry::OnWebIntentsDefaultsResultReceived(
     // Found a match. If it is better than default_service, use it.
     // Currently the metric is that if the new value is user-set,
     // prefer it. If the new value has a more specific pattern, prefer it.
+    // If the new value has a more recent date, prefer it.
     if (default_service.user_date <= 0 && iter->user_date >= 0) {
       default_service = *iter;
     } else if (default_service.url_pattern.match_all_urls() &&
@@ -296,6 +297,8 @@ void WebIntentsRegistry::OnWebIntentsDefaultsResultReceived(
       default_service = *iter;
     } else if (iter->url_pattern < default_service.url_pattern) {
       default_service = *iter;
+    } else if (default_service.user_date < iter->user_date) {
+      default_service = *iter;
     }
   }