Update mojo sdk to rev f6c8ec07c01deebc13178d516225fd12695c3dc2

mojo/edk/system/proxy_message_pipe_endpoint.h

Index: mojo/edk/system/proxy_message_pipe_endpoint.h
diff --git a/mojo/edk/system/proxy_message_pipe_endpoint.h b/mojo/edk/system/proxy_message_pipe_endpoint.h
index 3426869fbc3da83d8103ed5012f78fa0ca2cceb7..6e106990f35ce838abdb38bb8ac57d64b591a0f0 100644
--- a/mojo/edk/system/proxy_message_pipe_endpoint.h
+++ b/mojo/edk/system/proxy_message_pipe_endpoint.h
@@ -33,6 +33,14 @@ class MOJO_SYSTEM_IMPL_EXPORT ProxyMessagePipeEndpoint
   explicit ProxyMessagePipeEndpoint(ChannelEndpoint* channel_endpoint);
   ~ProxyMessagePipeEndpoint() override;
 
+  // Returns |channel_endpoint_| and resets |channel_endpoint_| to null. This
+  // may be called at most once, after which |Close()| need not be called.
+  //
+  // Note: The returned |ChannelEndpoint| must have its client changed while
+  // still under |MessagePipe|'s lock (which this must have also been called
+  // under).
+  scoped_refptr<ChannelEndpoint> ReleaseChannelEndpoint();
+
   // |MessagePipeEndpoint| implementation:
   Type GetType() const override;
   bool OnPeerClose() override;