Eliminate redundancy in the parameters to NotifyEntryChanged.

content/browser/frame_host/navigation_controller_impl.cc

 // 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.
 
 #include "content/browser/frame_host/navigation_controller_impl.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
@@ skipping 1892 matching lines @@
   if (!needs_reload_)
     return;
 
   // Calling Reload() results in ignoring state, and not loading.
   // Explicitly use NavigateToPendingEntry so that the renderer uses the
   // cached state.
   pending_entry_index_ = last_committed_entry_index_;
   NavigateToPendingEntry(NO_RELOAD);
 }
 
-void NavigationControllerImpl::NotifyEntryChanged(const NavigationEntry* entry,
-                                                  int index) {
+void NavigationControllerImpl::NotifyEntryChanged(
+    const NavigationEntry* entry) {
   EntryChangedDetails det;
   det.changed_entry = entry;
-  det.index = index;
+  det.index = GetIndexOfEntry(
+      NavigationEntryImpl::FromNavigationEntry(entry));
   NotificationService::current()->Notify(
       NOTIFICATION_NAV_ENTRY_CHANGED,
       Source<NavigationController>(this),
       Details<EntryChangedDetails>(&det));
 }
 
 void NavigationControllerImpl::FinishRestore(int selected_index,
                                              RestoreType type) {
   DCHECK(selected_index >= 0 && selected_index < GetEntryCount());
   ConfigureEntriesForRestore(&entries_, type);
@@ skipping 93 matching lines @@
     }
   }
 }
 
 void NavigationControllerImpl::SetGetTimestampCallbackForTest(
     const base::Callback<base::Time()>& get_timestamp_callback) {
   get_timestamp_callback_ = get_timestamp_callback;
 }
 
 }  // namespace content