Pick frame to navigate in the browser process.

components/sessions/content/content_serialized_navigation_builder.cc

 // Copyright 2014 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 "components/sessions/content/content_serialized_navigation_builder.h"
 
 #include "components/sessions/serialized_navigation_entry.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/favicon_status.h"
 #include "content/public/browser/navigation_controller.h"
@@ skipping 16 matching lines @@
   navigation.virtual_url_ = entry.GetVirtualURL();
   navigation.title_ = entry.GetTitle();
   navigation.encoded_page_state_ = entry.GetPageState().ToEncodedData();
   navigation.transition_type_ = entry.GetTransitionType();
   navigation.has_post_data_ = entry.GetHasPostData();
   navigation.post_id_ = entry.GetPostID();
   navigation.original_request_url_ = entry.GetOriginalRequestURL();
   navigation.is_overriding_user_agent_ = entry.GetIsOverridingUserAgent();
   navigation.timestamp_ = entry.GetTimestamp();
   navigation.is_restored_ = entry.IsRestored();
-  // If you want to navigate a named frame in Chrome, you will first need to
-  // add support for persisting it. It is currently only used for layout tests.
-  CHECK(entry.GetFrameToNavigate().empty());
   entry.GetExtraData(kSearchTermsKey, &navigation.search_terms_);
   if (entry.GetFavicon().valid)
     navigation.favicon_url_ = entry.GetFavicon().url;
   navigation.http_status_code_ = entry.GetHttpStatusCode();
   navigation.redirect_chain_ = entry.GetRedirectChain();
 
   return navigation;
 }
 
 // static
@@ skipping 47 matching lines @@
   for (std::vector<SerializedNavigationEntry>::const_iterator
        it = navigations.begin(); it != navigations.end(); ++it) {
     entries.push_back(
         ToNavigationEntry(&(*it), page_id, browser_context).release());
     ++page_id;
   }
   return entries.Pass();
 }
 
 }  // namespace sessions