Add bindProxy implementation without callback.

mojo/public/js/connection.js

Index: mojo/public/js/connection.js
diff --git a/mojo/public/js/connection.js b/mojo/public/js/connection.js
index 3f7e8392b3bb785e3cae8927e7abd261ca80cdd3..e13350a9b39f49587a9b2f6ab15c38648995ed09 100644
--- a/mojo/public/js/connection.js
+++ b/mojo/public/js/connection.js
@@ -98,6 +98,25 @@ define("mojo/public/js/connection", [
     return messagePipe.handle1;
   }
 
+  // Return a handle and proxy for a message pipe that's connected to a proxy
+  // for remoteInterface. Used by generated code for outgoing interface&
+  // (request) parameters
+  function bindProxy2(remoteInterface) {

[Ken Rockot(use gerrit already), 2016/10/04 22:36:51]

Let's call this getProxy. We'll probably change it eventually anyway since
Connection is a weird name for the module, but getProxy matches the C++ GetProxy
which does exactly the same thing.

[mbrunson, 2016/10/04 22:55:08]

Done.

+    var messagePipe = core.createMessagePipe();
+    if (messagePipe.result != core.RESULT_OK)
+      throw new Error("createMessagePipe failed " + messagePipe.result);
+
+    var proxy = new remoteInterface.proxyClass;
+    var router = new Router(messagePipe.handle0);
+    var connection = new BaseConnection(undefined, proxy, router);
+    ProxyBindings(proxy).connection = connection;
+
+    return {
+      handle: messagePipe.handle1,

[Ken Rockot(use gerrit already), 2016/10/04 22:36:51]

nit: Let's call this requestHandle

[mbrunson, 2016/10/04 22:55:08]

Done.

+      proxy: proxy
+    };
+  }
+
   // Return a handle for a message pipe that's connected to a stub for
   // localInterface. Used by generated code for outgoing interface
   // parameters: the caller  is given the generated stub via
@@ -168,6 +187,7 @@ define("mojo/public/js/connection", [
   exports.TestConnection = TestConnection;
 
   exports.bindProxy = bindProxy;
+  exports.bindProxy2 = bindProxy2;
   exports.bindImpl = bindImpl;
   exports.bindHandleToProxy = bindHandleToProxy;
   exports.bindHandleToStub = bindHandleToStub;