[Suggestions] Ability to override the timeout parameter via Variations

chrome/browser/search/suggestions/suggestions_service.h

Index: chrome/browser/search/suggestions/suggestions_service.h
diff --git a/chrome/browser/search/suggestions/suggestions_service.h b/chrome/browser/search/suggestions/suggestions_service.h
index a23be99635c311d97b7618b670c843d3018a07f7..3d12165b4444acea25bf3501513879685257f45c 100644
--- a/chrome/browser/search/suggestions/suggestions_service.h
+++ b/chrome/browser/search/suggestions/suggestions_service.h
@@ -131,6 +131,10 @@ class SuggestionsService : public KeyedService, public net::URLFetcherDelegate {
   // For callbacks may be run after destruction.
   base::WeakPtrFactory<SuggestionsService> weak_ptr_factory_;
 
+  // Timeout (in ms) before serving requestors after a fetch suggestions request
+  // has been issued.
+  int request_timeout_ms_;
+
   DISALLOW_COPY_AND_ASSIGN(SuggestionsService);
 };