Anti-DDoS enhancements: Log to net log, UMA stats, improved policy.

net/url_request/url_request_throttler_entry_interface.h

Index: net/url_request/url_request_throttler_entry_interface.h
diff --git a/net/url_request/url_request_throttler_entry_interface.h b/net/url_request/url_request_throttler_entry_interface.h
index 259c5cfbce318fd92b1c70884292299d22fd9c60..a910e1a5e80f71a092bed4981669d3ed93cd02b0 100644
--- a/net/url_request/url_request_throttler_entry_interface.h
+++ b/net/url_request/url_request_throttler_entry_interface.h
@@ -49,9 +49,10 @@ class NET_API URLRequestThrottlerEntryInterface
 
   // Lets higher-level modules, that know how to parse particular response
   // bodies, notify of receiving malformed content for the given URL. This will
-  // be handled by the throttler as if an HTTP 5xx response had been received to
-  // the request, i.e. it will count as a failure.
-  virtual void ReceivedContentWasMalformed() = 0;
+  // be handled by the throttler as if an HTTP 503 response had been received to
+  // the request, i.e. it will count as a failure, unless the HTTP response code
+  // indicated is already one of those that will be counted as an error.
+  virtual void ReceivedContentWasMalformed(int response_code) = 0;
 
  protected:
   friend class base::RefCountedThreadSafe<URLRequestThrottlerEntryInterface>;