[Sync] Add HTTP status codes to NavigationEntry and TabNavigation

content/browser/web_contents/navigation_entry_impl.h

Index: content/browser/web_contents/navigation_entry_impl.h
diff --git a/content/browser/web_contents/navigation_entry_impl.h b/content/browser/web_contents/navigation_entry_impl.h
index 8a2ca90cecb42107b5cd7d323808b15893bd8577..f8a4f054832df2a2fb273a37244b96a0949561cf 100644
--- a/content/browser/web_contents/navigation_entry_impl.h
+++ b/content/browser/web_contents/navigation_entry_impl.h
@@ -71,6 +71,8 @@ class CONTENT_EXPORT NavigationEntryImpl
   virtual bool GetIsOverridingUserAgent() const OVERRIDE;
   virtual void SetTimestamp(base::Time timestamp) OVERRIDE;
   virtual base::Time GetTimestamp() const OVERRIDE;
+  virtual void SetHttpStatusCode(int http_status_code) OVERRIDE;
+  virtual int GetHttpStatusCode() const OVERRIDE;
 
   void set_unique_id(int unique_id) {
     unique_id_ = unique_id;
@@ -166,9 +168,8 @@ class CONTENT_EXPORT NavigationEntryImpl
 
  private:
   // WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
-  // Session/Tab restore save portions of this class so that it can be recreated
-  // later. If you add a new field that needs to be persisted you'll have to
-  // update SessionService/TabRestoreService appropriately.
+  // If you add a new field that needs to be persisted you must update
+  // TabNavigation in session_types.h appropriately.
   // WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
 
   // See the accessors above for descriptions.
@@ -192,6 +193,7 @@ class CONTENT_EXPORT NavigationEntryImpl
   GURL original_request_url_;
   bool is_overriding_user_agent_;
   base::Time timestamp_;
+  int http_status_code_;
 
   // This member is not persisted with session restore because it is transient.
   // If the post request succeeds, this field is cleared since the same