Remove unused and obsolete Tab -currentRedirectedURLs method.

ios/web/navigation/crw_session_controller.mm

 // Copyright 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.
 
 #import "ios/web/navigation/crw_session_controller.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <utility>
@@ skipping 635 matching lines @@
     CRWSessionEntry* entry = [_entries objectAtIndex:lastNonRedirectedIndex];
     if (!ui::PageTransitionIsRedirect(
             entry.navigationItem->GetTransitionType())) {
       [entries addObject:entry];
     }
     ++lastNonRedirectedIndex;
   }
   return entries;
 }
 
-- (std::vector<GURL>)currentRedirectedUrls {
-  std::vector<GURL> results;
-  if (_pendingEntry) {
-    web::NavigationItem* item = [_pendingEntry navigationItem];
-    results.push_back(item->GetURL());
-
-    if (!ui::PageTransitionIsRedirect(item->GetTransitionType()))
-      return results;
-  }
-
-  if (![_entries count])
-    return results;
-
-  NSInteger index = _currentNavigationIndex;
-  // Add urls in the redirected entries.
-  while (index >= 0) {
-    web::NavigationItem* item = [[_entries objectAtIndex:index] navigationItem];
-    if (!ui::PageTransitionIsRedirect(item->GetTransitionType()))
-      break;
-    results.push_back(item->GetURL());
-    --index;
-  }
-  // Add the last non-redirected entry.
-  if (index >= 0) {
-    web::NavigationItem* item = [[_entries objectAtIndex:index] navigationItem];
-    results.push_back(item->GetURL());
-  }
-  return results;
-}
-
 - (BOOL)isSameDocumentNavigationBetweenEntry:(CRWSessionEntry*)firstEntry
                                     andEntry:(CRWSessionEntry*)secondEntry {
   if (!firstEntry || !secondEntry || firstEntry == secondEntry)
     return NO;
   NSUInteger firstIndex = [_entries indexOfObject:firstEntry];
   NSUInteger secondIndex = [_entries indexOfObject:secondEntry];
   if (firstIndex == NSNotFound || secondIndex == NSNotFound)
     return NO;
   NSUInteger startIndex = firstIndex < secondIndex ? firstIndex : secondIndex;
   NSUInteger endIndex = firstIndex < secondIndex ? secondIndex : firstIndex;
@@ skipping 75 matching lines @@
   return [[CRWSessionEntry alloc] initWithNavigationItem:std::move(item)];
 }
 
 - (BOOL)isRedirectTransitionForEntryAtIndex:(NSInteger)index {
   ui::PageTransition transition =
       [_entries[index] navigationItem]->GetTransitionType();
   return (transition & ui::PAGE_TRANSITION_IS_REDIRECT_MASK) ? YES : NO;
 }
 
 @end