Mojo: Implement support for |Foo&| mojom syntax

mojo/examples/pepper_container_app/pepper_container_app.cc

Index: mojo/examples/pepper_container_app/pepper_container_app.cc
diff --git a/mojo/examples/pepper_container_app/pepper_container_app.cc b/mojo/examples/pepper_container_app/pepper_container_app.cc
index 8d8b4e925a06b60263790e9274499ca214d11a75..6e92a68b9653cf8b05c5f3f71bdf01cf57067deb 100644
--- a/mojo/examples/pepper_container_app/pepper_container_app.cc
+++ b/mojo/examples/pepper_container_app/pepper_container_app.cc
@@ -85,9 +85,9 @@ class PepperContainerApp: public Application,
 
   // MojoPpapiGlobals::Delegate implementation.
   virtual ScopedMessagePipeHandle CreateGLES2Context() OVERRIDE {
-    MessagePipe gles2_pipe;
-    viewport_->CreateGLES2Context(gles2_pipe.handle1.Pass());
-    return gles2_pipe.handle0.Pass();
+    CommandBufferPtr command_buffer;
+    viewport_->CreateGLES2Context(Get(&command_buffer));
+    return command_buffer.PassMessagePipe();
   }
 
  private: