InstantExtended: Transient naventry for preview.

chrome/browser/instant/instant_loader.cc

 // Copyright 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 "chrome/browser/instant/instant_loader.h"
 
 #include "chrome/browser/content_settings/tab_specific_content_settings.h"
 #include "chrome/browser/extensions/api/web_navigation/web_navigation_api.h"
 #include "chrome/browser/favicon/favicon_tab_helper.h"
 #include "chrome/browser/history/history_tab_helper.h"
 #include "chrome/browser/instant/instant_controller.h"
 #include "chrome/browser/safe_browsing/safe_browsing_tab_observer.h"
 #include "chrome/browser/ui/blocked_content/blocked_content_tab_helper.h"
 #include "chrome/browser/ui/search/search_tab_helper.h"
 #include "chrome/browser/ui/tab_contents/core_tab_helper.h"
 #include "chrome/browser/ui/tab_contents/core_tab_helper_delegate.h"
+#include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/notification_source.h"
 #include "content/public/browser/notification_types.h"
 #include "content/public/browser/render_widget_host_view.h"
 #include "content/public/browser/web_contents_delegate.h"
 #include "content/public/browser/web_contents_view.h"
 #include "ipc/ipc_message.h"
 
 namespace {
 
 int kUserDataKey;
@@ skipping 253 matching lines @@
   InstantSupportDetermined(true);
   controller_->SetSuggestions(contents(), suggestions);
 }
 
 void InstantLoader::InstantSupportDetermined(bool supports_instant) {
   // If we had already determined that the page supports Instant, nothing to do.
   if (supports_instant_)
     return;
 
   supports_instant_ = supports_instant;
+  const content::NavigationEntry* entry =
+      contents()->GetController().GetVisibleEntry();
+  base_navigation_entry_.reset(content::NavigationEntry::Create(*entry));
   controller_->InstantSupportDetermined(contents(), supports_instant);
 }
 
 void InstantLoader::ShowInstantPreview(InstantShownReason reason,
                                        int height,
                                        InstantSizeUnits units) {
   InstantSupportDetermined(true);
   controller_->ShowInstantPreview(reason, height, units);
 }
 
@@ skipping 108 matching lines @@
                                            content::WebContents* new_contents) {
   DCHECK_EQ(old_contents, contents());
   CleanupPreviewContents();
   // We release here without deleting so that the caller still has the
   // responsibility for deleting the WebContents.
   ignore_result(contents_.release());
   contents_.reset(new_contents);
   SetupPreviewContents();
   controller_->SwappedWebContents();
 }