Support exposing Mojo services between render frames, render threads, and their respective hosts.

content/child/child_thread.cc

Index: content/child/child_thread.cc
diff --git a/content/child/child_thread.cc b/content/child/child_thread.cc
index 5e77c4046bec7deb5396eacb3671da1bc0b50dc4..39ba53519c8985bf733ac5944bfbaea7d079dbfb 100644
--- a/content/child/child_thread.cc
+++ b/content/child/child_thread.cc
@@ -238,7 +238,7 @@ void ChildThread::Init() {
     IPC::Logging::GetInstance()->SetIPCSender(this);
 #endif
 
-  mojo_application_.reset(new MojoApplication(this));
+  mojo_application_.reset(new MojoApplication);
 
   sync_message_filter_ =
       new IPC::SyncMessageFilter(ChildProcess::current()->GetShutDownEvent());
@@ -354,15 +354,6 @@ void ChildThread::OnChannelError() {
   base::MessageLoop::current()->Quit();
 }
 
-void ChildThread::ConnectToService(
-    const mojo::String& service_url,
-    const mojo::String& service_name,
-    mojo::ScopedMessagePipeHandle message_pipe,
-    const mojo::String& requestor_url) {
-  // By default, we don't expect incoming connections.
-  NOTREACHED();
-}
-
 bool ChildThread::Send(IPC::Message* msg) {
   DCHECK(base::MessageLoop::current() == message_loop());
   if (!channel_) {