Give user the ability to disable the URL request throttler:...

net/url_request/url_request_throttler_manager.h

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef NET_URL_REQUEST_URL_REQUEST_THROTTLER_MANAGER_H_
 #define NET_URL_REQUEST_URL_REQUEST_THROTTLER_MANAGER_H_
 
 #include <map>
 #include <string>
 
@@ skipping 31 matching lines @@
   // any) for the URL. The service will hold a reference to the entry.
   // It is only used by unit tests.
   void OverrideEntryForTests(const GURL& url, URLRequestThrottlerEntry* entry);
 
   // Explicitly erases an entry.
   // This is useful to remove those entries which have got infinite lifetime and
   // thus won't be garbage collected.
   // It is only used by unit tests.
   void EraseEntryForTests(const GURL& url);
 
+  void set_enforce_throttling(bool enforce_throttling) {
+    enforce_throttling_ = enforce_throttling;
+  }
+
+  bool enforce_throttling() const { return enforce_throttling_; }
+
  protected:
   URLRequestThrottlerManager();
   ~URLRequestThrottlerManager();
 
   // Method that allows us to transform a URL into an ID that can be used in our
   // map. Resulting IDs will be lowercase and consist of the scheme, host, port
   // and path (without query string, fragment, etc.).
   // If the URL is invalid, the invalid spec will be returned, without any
   // transformation.
   std::string GetIdFromUrl(const GURL& url) const;
@@ skipping 24 matching lines @@
   // Map that contains a list of URL ID and their matching
   // URLRequestThrottlerEntry.
   UrlEntryMap url_entries_;
 
   // This keeps track of how many requests have been made. Used with
   // GarbageCollectEntries.
   unsigned int requests_since_last_gc_;
 
   mutable scoped_ptr<GURL::Replacements> url_id_replacements_;
 
+  // Whether we would like to reject outgoing HTTP requests during the back-off
+  // period.
+  bool enforce_throttling_;
+
   DISALLOW_COPY_AND_ASSIGN(URLRequestThrottlerManager);
 };
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_URL_REQUEST_THROTTLER_MANAGER_H_