Add a FrameHostMsg_BeginNavigation IPC

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 f7f959e201905f974da72117752bd8f7bc42d220..14968e3643b7d99a013c06ce17e04a281330f859 100644
--- a/content/browser/frame_host/render_frame_host_impl.cc
+++ b/content/browser/frame_host/render_frame_host_impl.cc
@@ -335,6 +335,8 @@ bool RenderFrameHostImpl::OnMessageReceived(const IPC::Message &msg) {
     IPC_MESSAGE_HANDLER(FrameHostMsg_DidDisownOpener, OnDidDisownOpener)
     IPC_MESSAGE_HANDLER(FrameHostMsg_UpdateTitle, OnUpdateTitle)
     IPC_MESSAGE_HANDLER(FrameHostMsg_UpdateEncoding, OnUpdateEncoding)
+    IPC_MESSAGE_HANDLER(FrameHostMsg_BeginNavigation,
+                        OnBeginNavigation)
     IPC_MESSAGE_HANDLER(DesktopNotificationHostMsg_RequestPermission,
                         OnRequestDesktopNotificationPermission)
     IPC_MESSAGE_HANDLER(DesktopNotificationHostMsg_Show,
@@ -769,6 +771,11 @@ void RenderFrameHostImpl::OnUpdateEncoding(const std::string& encoding_name) {
   delegate_->UpdateEncoding(this, encoding_name);
 }
 
+void RenderFrameHostImpl::OnBeginNavigation(
+    const FrameHostMsg_BeginNavigation_Params& params) {
+  frame_tree_node()->render_manager()->BeginNavigation(params);
+}
+
 void RenderFrameHostImpl::SetPendingShutdown(const base::Closure& on_swap_out) {
   render_view_host_->SetPendingShutdown(on_swap_out);
 }