Revert of ChannelMojo: Ensure that it always has ScopedIPCSupport

content/child/child_thread_impl.h

Index: content/child/child_thread_impl.h
diff --git a/content/child/child_thread_impl.h b/content/child/child_thread_impl.h
index 821ca4e6840cdca1ba2d1d5e2bda0dd218c1c375..7b04d429d149f1a027df4d79133888cf1916a8fa 100644
--- a/content/child/child_thread_impl.h
+++ b/content/child/child_thread_impl.h
@@ -235,6 +235,15 @@
 
   void EnsureConnected();
 
+  class SingleProcessChannelDelegate;
+  class SingleProcessChannelDelegateDeleter {
+   public:
+    void operator()(SingleProcessChannelDelegate* delegate) const;
+  };
+
+  scoped_ptr<IPC::ScopedIPCSupport> ipc_support_;
+  scoped_ptr<SingleProcessChannelDelegate, SingleProcessChannelDelegateDeleter>
+      single_process_channel_delegate_;
   scoped_ptr<MojoApplication> mojo_application_;
 
   std::string channel_name_;