Add missing checks that default search contains search term replacement.

BUG=116952
TEST=TemplateURLServiceTest.*


Review URL: http://codereview.chromium.org/10184009

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@133510 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/search_engines/template_url_service.cc

@@ -612,7 +612,8 @@ void TemplateURLService::OnWebDataServiceRequestDone(
     }
     // Note that this saves the default search provider to prefs.
     if (!default_search_provider ||
-        !default_search_provider->IsExtensionKeyword())
+        (!default_search_provider->IsExtensionKeyword() &&
+         default_search_provider->SupportsReplacement()))
       SetDefaultSearchProviderNoNotify(default_search_provider);
   } else {
     // If we had a managed default, replace it with the synced default if