Move didAccessInitialDocument to RenderFrame.

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/debug/trace_event.h"
 #include "base/logging.h"
 #include "base/strings/string_number_conversions.h"  // Temporary
@@ skipping 1387 matching lines @@
 
 void NavigationControllerImpl::SetMaxRestoredPageID(int32 max_id) {
   max_restored_page_id_ = max_id;
 }
 
 int32 NavigationControllerImpl::GetMaxRestoredPageID() const {
   return max_restored_page_id_;
 }
 
 bool NavigationControllerImpl::IsUnmodifiedBlankTab() const {
-  // TODO(creis): Move has_accessed_initial_document from RenderViewHost to
-  // WebContents and NavigationControllerDelegate.
-  RenderViewHostImpl* rvh = static_cast<RenderViewHostImpl*>(
-      delegate_->GetRenderViewHost());
   return IsInitialNavigation() &&
-      !GetLastCommittedEntry() &&
-      !rvh->has_accessed_initial_document();
+         !GetLastCommittedEntry() &&
+         !delegate_->HasAccessedInitialDocument();
 }
 
 SessionStorageNamespace*
 NavigationControllerImpl::GetSessionStorageNamespace(SiteInstance* instance) {
   std::string partition_id;
   if (instance) {
     // TODO(ajwong): When GetDefaultSessionStorageNamespace() goes away, remove
     // this if statement so |instance| must not be NULL.
     partition_id =
         GetContentClient()->browser()->GetStoragePartitionIdForSite(
@@ skipping 318 matching lines @@
     }
   }
 }
 
 void NavigationControllerImpl::SetGetTimestampCallbackForTest(
     const base::Callback<base::Time()>& get_timestamp_callback) {
   get_timestamp_callback_ = get_timestamp_callback;
 }
 
 }  // namespace content