[mojo-edk] Add explicit message object APIs

mojo/edk/js/tests/connection_tests.js

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 define([
     "gin/test/expect",
     "mojo/public/js/connection",
     "mojo/public/js/core",
     "mojo/public/interfaces/bindings/tests/sample_interfaces.mojom",
     "mojo/public/interfaces/bindings/tests/sample_service.mojom",
@@ skipping 49 matching lines @@
     foo.name = "Example name";
     foo.source = sourcePipe.handle0;
     var promise = connection1.remote.frobinate(
         foo, sample_service.Service.BazOptions.REGULAR, anotherPipe.handle0)
             .then(function(response) {
       expect(response.result).toBe(42);
 
       connection0.close();
       connection1.close();
 
-      // The Connection objects are responsible for closing these handles.
-      expect(core.close(pipe.handle0)).toBe(core.RESULT_INVALID_ARGUMENT);
-      expect(core.close(pipe.handle1)).toBe(core.RESULT_INVALID_ARGUMENT);
-
       return Promise.resolve();
     });
 
-    // sourcePipe.handle0 was closed automatically when sent over IPC.
-    expect(core.close(sourcePipe.handle0)).toBe(core.RESULT_INVALID_ARGUMENT);
     // sourcePipe.handle1 hasn't been closed yet.
     expect(core.close(sourcePipe.handle1)).toBe(core.RESULT_OK);
 
-    // anotherPipe.handle0 was closed automatically when sent over IPC.
-    expect(core.close(anotherPipe.handle0)).toBe(core.RESULT_INVALID_ARGUMENT);
     // anotherPipe.handle1 hasn't been closed yet.
     expect(core.close(anotherPipe.handle1)).toBe(core.RESULT_OK);
 
     return promise;
   }
 
   function testWriteToClosedPipe() {
     var pipe = core.createMessagePipe();
     var anotherPipe = core.createMessagePipe();
 
@@ skipping 62 matching lines @@
       throw Error("Expected echoString to fail.");
     }, function(error) {
       expect(error.message).toBe("Connection error: " + core.RESULT_UNKNOWN);
 
       return Promise.resolve();
     });
 
     return promise;
   }
 });