Mojo: Replace RemotePtr with InterfacePtr and InterfaceImpl

mojo/apps/js/test/js_to_cpp.mojom

Index: mojo/apps/js/test/js_to_cpp.mojom
diff --git a/mojo/apps/js/test/js_to_cpp.mojom b/mojo/apps/js/test/js_to_cpp.mojom
index a432eb8659f9ac94aa302b7b84e647a0cb945f15..509f2f701abbb8dc140148d0bb7117942ceaaf82 100644
--- a/mojo/apps/js/test/js_to_cpp.mojom
+++ b/mojo/apps/js/test/js_to_cpp.mojom
@@ -23,7 +23,6 @@ struct EchoArgs {
   handle<data_pipe_consumer> data_handle;
 };
 
-[Peer=JsSide]
 interface CppSide {
   StartTest();  // Sent for all tests to notify that the JS side is now ready.
   TestFinished();  // Sent in echo / bit-flip tests to indicate end.
@@ -32,7 +31,7 @@ interface CppSide {
   BitFlipResponse(EchoArgs arg);
 };
 
-[Peer=CppSide]
+[Client=CppSide]
 interface JsSide {
   Ping();
   Echo(int32 numIterations, EchoArgs arg);