If a RemoteFrame asks to navigate, send an OpenURL IPC

content/browser/frame_host/render_frame_proxy_host.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 "content/browser/frame_host/render_frame_proxy_host.h"
 
 #include "base/lazy_instance.h"
 #include "content/browser/frame_host/cross_process_frame_connector.h"
 #include "content/browser/frame_host/frame_tree.h"
 #include "content/browser/frame_host/frame_tree_node.h"
@@ skipping 82 matching lines @@
 
 bool RenderFrameProxyHost::Send(IPC::Message *msg) {
   // TODO(nasko): For now, RenderFrameHost uses this object to send IPC messages
   // while swapped out. This can be removed once we don't have a swapped out
   // state on RenderFrameHosts. See https://crbug.com/357747.
   msg->set_routing_id(routing_id_);
   return GetProcess()->Send(msg);
 }
 
 bool RenderFrameProxyHost::OnMessageReceived(const IPC::Message& msg) {
+  bool handled = true;

[Charlie Reis, 2014/09/18 20:22:27]

Let's move this new block to the end of the method.  We usually defer to other
potential handlers first, and then process the message.

(I realize this means render_frame_host_ will intercept it when the
CommitPending hack is in place, but it should work properly without that hack.)

[Nate Chapin, 2014/09/18 22:39:02]

Done.

+  IPC_BEGIN_MESSAGE_MAP(RenderFrameProxyHost, msg)
+    IPC_MESSAGE_HANDLER(FrameHostMsg_OpenURL, OnOpenURL)
+    IPC_MESSAGE_UNHANDLED(handled = false)
+  IPC_END_MESSAGE_MAP()
+  if (handled)
+    return true;
+
   if (cross_process_frame_connector_.get() &&
       cross_process_frame_connector_->OnMessageReceived(msg))
     return true;
 
   // TODO(nasko): This can be removed once we don't have a swapped out state on
   // RenderFrameHosts. See https://crbug.com/357747.
   if (render_frame_host_.get())
     return render_frame_host_->OnMessageReceived(msg);
 
   return false;
@@ skipping 23 matching lines @@
                                       ->GetRenderViewHost(site_instance_.get())
                                       ->GetRoutingID()));
 
   return true;
 }
 
 void RenderFrameProxyHost::DisownOpener() {
   Send(new FrameMsg_DisownOpener(GetRoutingID()));
 }
 
+void RenderFrameProxyHost::OnOpenURL(
+    const FrameHostMsg_OpenURL_Params& params) {
+  frame_tree_node_->current_frame_host()->OpenURL(params);
+}
+
 }  // namespace content