Introduce content::PageState (again).

content/browser/web_contents/navigation_entry_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/navigation_entry_impl.h"
 
 #include "base/metrics/histogram.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "content/public/common/content_constants.h"
@@ skipping 117 matching lines @@
 
 void NavigationEntryImpl::SetTitle(const string16& title) {
   title_ = title;
   cached_display_title_.clear();
 }
 
 const string16& NavigationEntryImpl::GetTitle() const {
   return title_;
 }
 
-void NavigationEntryImpl::SetContentState(const std::string& state) {
-  content_state_ = state;
+void NavigationEntryImpl::SetPageState(const PageState& state) {
+  page_state_ = state;
 }
 
-const std::string& NavigationEntryImpl::GetContentState() const {
-  return content_state_;
+const PageState& NavigationEntryImpl::GetPageState() const {
+  return page_state_;
 }
 
 void NavigationEntryImpl::SetPageID(int page_id) {
   page_id_ = page_id;
 }
 
 int32 NavigationEntryImpl::GetPageID() const {
   return page_id_;
 }
 
@@ skipping 158 matching lines @@
 }
 
 void NavigationEntryImpl::SetScreenshotPNGData(
     scoped_refptr<base::RefCountedBytes> png_data) {
   screenshot_ = png_data;
   if (screenshot_)
     UMA_HISTOGRAM_MEMORY_KB("Overscroll.ScreenshotSize", screenshot_->size());
 }
 
 }  // namespace content