Remove obsolete RequestTrackerImpl::CancelRequests.

ios/web/net/request_tracker_impl.h

 // Copyright 2014 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 IOS_WEB_NET_REQUEST_TRACKER_IMPL_H_
 #define IOS_WEB_NET_REQUEST_TRACKER_IMPL_H_
 
 #import <Foundation/Foundation.h>
 #include <stdint.h>
 
@@ skipping 266 matching lines @@
   void TrimToURL(const GURL& url, id user_info);
 
   // Sets page_url_ to the new URL if it's a valid history state change (i.e.
   // the URL's have the same origin) and if the tab is currently loading.
   void HistoryStateChangeToURL(const GURL& full_url);
 
   // Note that the page started by a call to Trim is no longer loading.
   // |load_success| indicates if the page successfully loaded.
   void StopPageLoad(const GURL& url, bool load_success);
 
-  // Cancels all the requests in |live_requests_|.
-  void CancelRequests();
-
 #pragma mark Private Consumer API
   // Private methods that call into delegate methods.
 
   // Notify* methods are posted to the UI thread by the provider API
   // methods.
 
   // Has the delegate handle |headers| for |request_url|.
   void NotifyResponseHeaders(net::HttpResponseHeaders* headers,
                              const GURL& request_url);
 
@@ skipping 36 matching lines @@
   // should be done on the main thread.
   id<CRWRequestTrackerDelegate> delegate_;  // Weak.
 
 #pragma mark Non thread-safe fields, only accessed from the IO thread.
   // All the tracked requests for the page, indexed by net::URLRequest (Cast as
   // a void* to avoid the temptation of accessing it from the wrong thread).
   // This map is not exhaustive: it is only meant to estimate the loading
   // progress, and thus requests corresponding to old navigation events are not
   // in it.
   std::map<const void*, TrackerCounts*> counts_by_request_;
-  // All the live requests associated with the tracker.
-  std::set<net::URLRequest*> live_requests_;
   // A list of all the TrackerCounts, including the finished ones.
   std::vector<std::unique_ptr<TrackerCounts>> counts_;
   // The system shall never allow the page load estimate to go back.
   float previous_estimate_;
   // Index of the first request to consider for building the estimation.
   unsigned int estimate_start_index_;
   // How many notifications are currently queued, to avoid notifying too often.
   int notification_depth_;
   // The tracker containing the error currently presented to the user.
   TrackerCounts* current_ssl_error_;
@@ skipping 26 matching lines @@
   // Flag to synchronize deletion and callback creation. Lives on the IO thread.
   // True when this tracker has beed Close()d. If this is the case, no further
   // references to it should be generated (for example by binding it into a
   // callback), and the expectation is that it will soon be deleted.
   bool is_closing_;
 };
 
 }  // namespace web
 
 #endif  // IOS_WEB_NET_REQUEST_TRACKER_IMPL_H_