Eliminate redundancy in the parameters to NotifyEntryChanged.

content/browser/web_contents/web_contents_impl.cc

Index: content/browser/web_contents/web_contents_impl.cc
diff --git a/content/browser/web_contents/web_contents_impl.cc b/content/browser/web_contents/web_contents_impl.cc
index 95352e39037f7de388debb2bc04e92fd0232a898..5f14984811db08f6298b5a2770962164945e68b7 100644
--- a/content/browser/web_contents/web_contents_impl.cc
+++ b/content/browser/web_contents/web_contents_impl.cc
@@ -3634,17 +3634,16 @@ void WebContentsImpl::UpdateState(RenderViewHost* rvh,
   // leaving a page, in which case our state may have already been moved to
   // the next page. The navigation controller will look up the appropriate
   // NavigationEntry and update it when it is notified via the delegate.
-
-  int entry_index = controller_.GetEntryIndexWithPageID(
+  NavigationEntryImpl* entry = controller_.GetEntryWithPageID(
       rvh->GetSiteInstance(), page_id);
-  if (entry_index < 0)
+
+  if (!entry)
     return;
-  NavigationEntry* entry = controller_.GetEntryAtIndex(entry_index);
 
   if (page_state == entry->GetPageState())
     return;  // Nothing to update.
   entry->SetPageState(page_state);
-  controller_.NotifyEntryChanged(entry, entry_index);
+  controller_.NotifyEntryChanged(entry);
 }
 
 void WebContentsImpl::UpdateTargetURL(RenderViewHost* render_view_host,