Have a list of pending checks instead of pending clients

chrome/browser/loader/safe_browsing_resource_throttle.h

Index: chrome/browser/loader/safe_browsing_resource_throttle.h
diff --git a/chrome/browser/loader/safe_browsing_resource_throttle.h b/chrome/browser/loader/safe_browsing_resource_throttle.h
index 8a821412ed244b1b57b1b37f803a83bde5056262..81eed113d1e1061fbf9a9bf86792438a6a4d820d 100644
--- a/chrome/browser/loader/safe_browsing_resource_throttle.h
+++ b/chrome/browser/loader/safe_browsing_resource_throttle.h
@@ -168,6 +168,11 @@ class SafeBrowsingResourceThrottle
   GURL unchecked_redirect_url_;
   GURL url_being_checked_;
 
+  // TODO(vakh): The following vector should be removed after fixing
+  // http://crbug.com/660293
+  // URLs that timed out waiting for a SafeBrowsing reputation check.
+  std::vector<GURL> timed_out_urls_;
+
   scoped_refptr<safe_browsing::SafeBrowsingDatabaseManager> database_manager_;
   scoped_refptr<safe_browsing::SafeBrowsingUIManager> ui_manager_;
   const net::URLRequest* request_;