Adds Channel-associated interface support on ChannelProxy's thread

ipc/ipc_mojo_bootstrap.h

Index: ipc/ipc_mojo_bootstrap.h
diff --git a/ipc/ipc_mojo_bootstrap.h b/ipc/ipc_mojo_bootstrap.h
index 1d632d3db5136d326788fceaa584f80867b57005..b9df4083e6816e20e14ea7531b450f4619b9ed63 100644
--- a/ipc/ipc_mojo_bootstrap.h
+++ b/ipc/ipc_mojo_bootstrap.h
@@ -10,7 +10,9 @@
 #include <memory>
 
 #include "base/macros.h"
+#include "base/memory/ref_counted.h"
 #include "base/process/process_handle.h"
+#include "base/single_thread_task_runner.h"
 #include "build/build_config.h"
 #include "ipc/ipc.mojom.h"
 #include "ipc/ipc_channel.h"
@@ -54,6 +56,9 @@ class IPC_EXPORT MojoBootstrap {
 
   virtual mojo::AssociatedGroup* GetAssociatedGroup() = 0;
 
+  virtual void SetProxyTaskRunner(
+      scoped_refptr<base::SingleThreadTaskRunner> task_runner) = 0;
+
   // GetSelfPID returns our PID.
   base::ProcessId GetSelfPID() const;