Unify frame IDs with RenderFrameHost routing IDs.

content/browser/frame_host/render_frame_host_manager.h

Index: content/browser/frame_host/render_frame_host_manager.h
diff --git a/content/browser/frame_host/render_frame_host_manager.h b/content/browser/frame_host/render_frame_host_manager.h
index 768532a889c72382c1f8c9d78d27ec7e963973a9..b2750c1fb56f3793172d405233258236c3c94367 100644
--- a/content/browser/frame_host/render_frame_host_manager.h
+++ b/content/browser/frame_host/render_frame_host_manager.h
@@ -318,6 +318,7 @@ class CONTENT_EXPORT RenderFrameHostManager
     PageTransition page_transition;
 
     // This is the frame ID to use in RequestTransferURL.
+    // TODO(creis): Use frame routing IDs instead.  Currently equivalent.

[awong, 2014/02/20 00:25:30]

Do you mean to rename it basically?  The TODO comment doesn't quite make sense.

[Charlie Reis, 2014/02/20 00:43:53]

Yeah, there's no need for this TODO.  There's still a bunch of other places that
say frame_id that we can rename eventually.  Now that the concepts are
equivalent, there's no rush.

     int64 frame_id;
 
     // This is whether the navigation should replace the current history entry.