Make <a ping> work for context menus.

content/renderer/render_frame_impl.cc

Index: content/renderer/render_frame_impl.cc
diff --git a/content/renderer/render_frame_impl.cc b/content/renderer/render_frame_impl.cc
index 7f05db586db58ce7b7c414b9d101da3f18a82f67..adeff7036a909ee17b3c03e591a29b0cf2850462 100644
--- a/content/renderer/render_frame_impl.cc
+++ b/content/renderer/render_frame_impl.cc
@@ -1012,6 +1012,12 @@ void RenderFrameImpl::OnContextMenuClosed(
       pending_context_menus_.Remove(custom_context.request_id);
     }
   } else {
+    if (custom_context.link_followed.is_valid()) {
+        frame_->sendPings(
+            ContextMenuParamsBuilder::extractParentAnchorNode(

[darin (slow to review), 2014/07/22 17:34:40]

maybe we should just have a dom_utils.{h,cc} in content/renderer/, and put this
method in there? it seems like it doesn't strictly speaking have anything to do
with context menus.

[Nate Chapin, 2014/07/22 18:19:56]

Agree. dom_utils.{h,cc} seems like a reasonable name, will move there.

+                context_menu_node_),
+            custom_context.link_followed);
+    }
     // Internal request, forward to WebKit.
     context_menu_node_.reset();
   }