Remove X-Chrome-Exponential-Throttling header

net/url_request/url_request_throttler_entry.h

 // Copyright (c) 2012 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_ENTRY_H_
 #define NET_URL_REQUEST_URL_REQUEST_THROTTLER_ENTRY_H_
 
 #include <queue>
 #include <string>
 
@@ skipping 40 matching lines @@
   // Fuzzing percentage. ex: 10% will spread requests randomly
   // between 90%-100% of the calculated time.
   static const double kDefaultJitterFactor;
 
   // Maximum amount of time we are willing to delay our request.
   static const int kDefaultMaximumBackoffMs;
 
   // Time after which the entry is considered outdated.
   static const int kDefaultEntryLifetimeMs;
 
-  // Name of the header that sites can use to opt out of exponential back-off
-  // throttling.
-  static const char kExponentialThrottlingHeader[];
-
-  // Value for exponential throttling header that can be used to opt out of
-  // exponential back-off throttling.
-  static const char kExponentialThrottlingDisableValue[];
-
   // The manager object's lifetime must enclose the lifetime of this object.
   URLRequestThrottlerEntry(URLRequestThrottlerManager* manager,
                            const std::string& url_id);
 
   // The life span of instances created with this constructor is set to
   // infinite, and the number of initial errors to ignore is set to 0.
   // It is only used by unit tests.
   URLRequestThrottlerEntry(URLRequestThrottlerManager* manager,
                            const std::string& url_id,
                            int sliding_window_period_ms,
@@ skipping 12 matching lines @@
 
   // Causes this entry to NULL its manager pointer.
   void DetachManager();
 
   // Implementation of URLRequestThrottlerEntryInterface.
   bool ShouldRejectRequest(const URLRequest& request,
                            NetworkDelegate* network_delegate) const override;
   int64 ReserveSendingTimeForNextRequest(
       const base::TimeTicks& earliest_time) override;
   base::TimeTicks GetExponentialBackoffReleaseTime() const override;
-  void UpdateWithResponse(
-      const std::string& host,
-      const URLRequestThrottlerHeaderInterface* response) override;
+  void UpdateWithResponse(int status_code) override;
   void ReceivedContentWasMalformed(int response_code) override;
 
  protected:
   ~URLRequestThrottlerEntry() override;
 
   void Initialize();
 
-  // Returns true if the given response code is considered an error for
+  // Returns true if the given response code is considered a success for
   // throttling purposes.
-  bool IsConsideredError(int response_code);
+  bool IsConsideredSuccess(int response_code);
 
   // Equivalent to TimeTicks::Now(), virtual to be mockable for testing purpose.
   virtual base::TimeTicks ImplGetTimeNow() const;
 
-  // Used internally to handle the opt-out header.
-  void HandleThrottlingHeader(const std::string& header_value,
-                              const std::string& host);
-
   // Retrieves the back-off entry object we're using. Used to enable a
   // unit testing seam for dependency injection in tests.
   virtual const BackoffEntry* GetBackoffEntry() const;
   virtual BackoffEntry* GetBackoffEntry();
 
   // Returns true if |load_flags| contains a flag that indicates an
   // explicit request by the user to load the resource. We never
   // throttle requests with such load flags.
   static bool ExplicitUserRequest(const int load_flags);
 
@@ skipping 36 matching lines @@
   std::string url_id_;
 
   BoundNetLog net_log_;
 
   DISALLOW_COPY_AND_ASSIGN(URLRequestThrottlerEntry);
 };
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_URL_REQUEST_THROTTLER_ENTRY_H_