DRAFT CL: Add FrameNavigationEntry and track subframe session histories.

content/browser/frame_host/navigation_request.cc

Index: content/browser/frame_host/navigation_request.cc
diff --git a/content/browser/frame_host/navigation_request.cc b/content/browser/frame_host/navigation_request.cc
index 62349d7a5ac29ec0a0eb8ba01e485352eefeac70..eedc405b6221067f382ebbebec206b1295534848 100644
--- a/content/browser/frame_host/navigation_request.cc
+++ b/content/browser/frame_host/navigation_request.cc
@@ -85,13 +85,15 @@ scoped_ptr<NavigationRequest> NavigationRequest::CreateBrowserInitiated(
         entry.GetBrowserInitiatedPostData()->size());
   }
 
+  FrameNavigationEntry* frame_entry = entry.root_node()->frame_entry.get();
   scoped_ptr<NavigationRequest> navigation_request(new NavigationRequest(
-      frame_tree_node, entry.ConstructCommonNavigationParams(navigation_type),
+      frame_tree_node,
+      entry.ConstructCommonNavigationParams(*frame_entry, navigation_type),
       BeginNavigationParams(method, headers.ToString(),
                             LoadFlagFromNavigationType(navigation_type), false),
       entry.ConstructCommitNavigationParams(navigation_start),
-      entry.ConstructHistoryNavigationParams(controller), request_body, true,
-      &entry));
+      entry.ConstructHistoryNavigationParams(*frame_entry, controller),
+      request_body, true, &entry));
   return navigation_request.Pass();
 }