remove main_render_frame(), use GetMainRenderFrame() instead

content/renderer/history_entry.cc

 // Copyright 2014 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.
 
 /*
  * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved.
  *     (http://www.torchmobile.com/)
  *
@@ skipping 171 matching lines @@
 HistoryEntry* HistoryEntry::CloneAndReplace(const WebHistoryItem& new_item,
                                             bool clone_children_of_target,
                                             RenderFrameImpl* target_frame,
                                             RenderViewImpl* render_view) {
   HistoryEntry* new_entry = new HistoryEntry();
   new_entry->root_.reset(
       root_->CloneAndReplace(new_entry,
                              new_item,
                              clone_children_of_target,
                              target_frame,
-                             render_view->main_render_frame()));
+                             render_view->GetMainRenderFrame()));
   return new_entry;
 }
 
 HistoryEntry::HistoryNode* HistoryEntry::GetHistoryNodeForFrame(
     RenderFrameImpl* frame) {
   if (HistoryNode* history_node =
           frames_to_items_[GetFrameMap()[frame->GetRoutingID()]])
     return history_node;
   return unique_names_to_items_[frame->GetWebFrame()->uniqueName().utf8()];
 }
 
 WebHistoryItem HistoryEntry::GetItemForFrame(RenderFrameImpl* frame) {
   if (HistoryNode* history_node = GetHistoryNodeForFrame(frame))
     return history_node->item();
   return WebHistoryItem();
 }
 
 }  // namespace content