OOPIF: Clear old focused frame when focus moves to a cross-process frame.

content/browser/frame_host/render_frame_host_impl.cc

Index: content/browser/frame_host/render_frame_host_impl.cc
diff --git a/content/browser/frame_host/render_frame_host_impl.cc b/content/browser/frame_host/render_frame_host_impl.cc
index 488fad6ac2f16a5c604f863a188a6f637b7552a6..9e611ace533ee46528b4efea5d2e229c82d314a7 100644
--- a/content/browser/frame_host/render_frame_host_impl.cc
+++ b/content/browser/frame_host/render_frame_host_impl.cc
@@ -1817,6 +1817,10 @@ void RenderFrameHostImpl::UpdateOpener() {
   Send(new FrameMsg_UpdateOpener(GetRoutingID(), opener_routing_id));
 }
 
+void RenderFrameHostImpl::ClearFocus() {
+  Send(new FrameMsg_ClearFocus(routing_id_));

[alexmos, 2015/09/29 23:37:13]

I was debating whether this should pass the new focused frame (as a proxy
routing ID), but I haven't found a use case that needs this, so went with just
clearing focus in the old renderer.  I wrote up some discussion on this in my
doc (https://goo.gl/B9S5ou).

[Charlie Reis, 2015/09/29 23:50:44]

Acknowledged.

+}
+
 void RenderFrameHostImpl::ExtendSelectionAndDelete(size_t before,
                                                    size_t after) {
   Send(new InputMsg_ExtendSelectionAndDelete(routing_id_, before, after));