Remove dead NavigationControllerImpl::IsRedirect.

content/browser/frame_host/navigation_controller_impl.h

 // Copyright 2013 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 CONTENT_BROWSER_FRAME_HOST_NAVIGATION_CONTROLLER_IMPL_H_
 #define CONTENT_BROWSER_FRAME_HOST_NAVIGATION_CONTROLLER_IMPL_H_
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/gtest_prod_util.h"
@@ skipping 288 matching lines @@
   // If we have the maximum number of entries, remove the oldest one in
   // preparation to add another.
   void PruneOldestEntryIfFull();
 
   // Removes all entries except the last committed entry.  If there is a new
   // pending navigation it is preserved. In contrast to PruneAllButVisible()
   // this does not update the session history of the RenderView.  Callers
   // must ensure that |CanPruneAllButVisible| returns true before calling this.
   void PruneAllButVisibleInternal();
 
-  // Returns true if the navigation is redirect.
-  bool IsRedirect(const ViewHostMsg_FrameNavigate_Params& params);
-
   // Returns true if the navigation is likley to be automatic rather than
   // user-initiated.
   bool IsLikelyAutoNavigation(base::TimeTicks now);
 
   // Inserts up to |max_index| entries from |source| into this. This does NOT
   // adjust any of the members that reference entries_
   // (last_committed_entry_index_, pending_entry_index_ or
   // transient_entry_index_).
   void InsertEntriesFrom(const NavigationControllerImpl& source, int max_index);
 
@@ skipping 79 matching lines @@
   TimeSmoother time_smoother_;
 
   scoped_ptr<WebContentsScreenshotManager> screenshot_manager_;
 
   DISALLOW_COPY_AND_ASSIGN(NavigationControllerImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_NAVIGATION_CONTROLLER_IMPL_H_