Remove X-Chrome-Exponential-Throttling header

net/url_request/url_request_throttler_entry.h

Index: net/url_request/url_request_throttler_entry.h
diff --git a/net/url_request/url_request_throttler_entry.h b/net/url_request/url_request_throttler_entry.h
index cbb84e76ea76272ec58953112126cbad7fa7dd54..dd21a9d14cec3f598845a5abbf3a1695693464e5 100644
--- a/net/url_request/url_request_throttler_entry.h
+++ b/net/url_request/url_request_throttler_entry.h
@@ -58,14 +58,6 @@ class NET_EXPORT URLRequestThrottlerEntry
   // Time after which the entry is considered outdated.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);
@@ -98,9 +90,7 @@ class NET_EXPORT URLRequestThrottlerEntry
   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(const std::string& host, int status_code) override;
   void ReceivedContentWasMalformed(int response_code) override;
 
  protected:
@@ -115,10 +105,6 @@ class NET_EXPORT URLRequestThrottlerEntry
   // 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;