Moves TabNavigation into components/sessions and renames

chrome/browser/sessions/tab_restore_service_helper.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 "chrome/browser/sessions/tab_restore_service_helper.h"
 
 #include <algorithm>
 #include <iterator>
 
 #include "base/logging.h"
@@ skipping 374 matching lines @@
     NavigationController* controller) {
   const int pending_index = controller->GetPendingEntryIndex();
   int entry_count = controller->GetEntryCount();
   if (entry_count == 0 && pending_index == 0)
     entry_count++;
   tab->navigations.resize(static_cast<int>(entry_count));
   for (int i = 0; i < entry_count; ++i) {
     NavigationEntry* entry = (i == pending_index) ?
         controller->GetPendingEntry() : controller->GetEntryAtIndex(i);
     tab->navigations[i] =
-        TabNavigation::FromNavigationEntry(i, *entry);
+        sessions::SerializedNavigationEntry::FromNavigationEntry(i, *entry);
   }
   tab->timestamp = TimeNow();
   tab->current_navigation_index = controller->GetCurrentEntryIndex();
   if (tab->current_navigation_index == -1 && entry_count > 0)
     tab->current_navigation_index = 0;
   tab->tabstrip_index = index;
 
   extensions::TabHelper* extensions_tab_helper =
       extensions::TabHelper::FromWebContents(controller->GetWebContents());
   // extensions_tab_helper is NULL in some browser tests.
@@ skipping 155 matching lines @@
       Tab* tab = static_cast<Tab*>(entry);
       if (tab->browser_id == old_id)
         tab->browser_id = new_id;
     }
   }
 }
 
 base::Time TabRestoreServiceHelper::TimeNow() const {
   return time_factory_ ? time_factory_->TimeNow() : base::Time::Now();
 }