Avoid unnecessary casts in NavigationControllerImpl.

content/browser/web_contents/web_contents_impl.cc

 // Copyright (c) 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.
 
 #include "content/browser/web_contents/web_contents_impl.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/lazy_instance.h"
@@ skipping 1942 matching lines @@
 }
 
 bool WebContentsImpl::NavigateToPendingEntry(
     NavigationController::ReloadType reload_type) {
   FrameTreeNode* node = frame_tree_.root();
 
   // Navigate in the FrameTreeNode specified in the pending entry, if any.  This
   // is currently only used in --site-per-process and tests.
   // TODO(creis): Remove this method and NavigationEntryImpl::frame_tree_node_id
   // by using FrameNavigationEntries instead.  See https://crbug.com/236848.
-  NavigationEntryImpl* pending_entry =
-      NavigationEntryImpl::FromNavigationEntry(controller_.GetPendingEntry());
+  NavigationEntryImpl* pending_entry = controller_.GetPendingEntry();
   if (pending_entry->frame_tree_node_id() != -1) {
     FrameTreeNode* subframe =
         frame_tree_.FindByID(pending_entry->frame_tree_node_id());
     DCHECK(subframe);
     if (subframe)
       node = subframe;
   }
 
   return node->navigator()->NavigateToPendingEntry(node, reload_type);
 }
@@ skipping 2539 matching lines @@
   node->render_manager()->ResumeResponseDeferredAtStart();
 }
 
 void WebContentsImpl::SetForceDisableOverscrollContent(bool force_disable) {
   force_disable_overscroll_content_ = force_disable;
   if (view_)
     view_->SetOverscrollControllerEnabled(CanOverscrollContent());
 }
 
 }  // namespace content