Break dependency on core from generated mojom.js files

mojo/apps/js/bindings/connection_unittests.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.
 
 // Mock out the support module to avoid depending on the message loop.
 define("mojo/public/js/bindings/support", ["timer"], function(timer) {
   var waitingCallbacks = [];
 
   function WaitCookie(id) {
     this.id = id;
@@ skipping 156 matching lines @@
 
     // Close the other end of the pipe.
     core.close(pipe.handle0);
 
     // Not observed yet because we haven't pumped events yet.
     expect(connection1.encounteredError()).toBeFalsy();
 
     var foo = new sample_service.Foo();
     foo.bar = new sample_service.Bar();
     // TODO(darin): crbug.com/357043: pass null in place of |foo| here.
-    connection1.remote.frobinate(foo, true, core.kInvalidHandle);
+    connection1.remote.frobinate(foo, true, null);
 
     // Write failures are not reported.
     expect(connection1.encounteredError()).toBeFalsy();
 
     // Pump events, and then we should start observing the closed pipe.
     mockSupport.pumpOnce(core.RESULT_OK);
 
     expect(connection1.encounteredError()).toBeTruthy();
 
     connection1.close();
@@ skipping 59 matching lines @@
     }).then(function() {
       throw Error("Expected echoString to fail.");
     }, function(error) {
       expect(error.message).toBe("Connection error: " + core.RESULT_UNKNOWN);
 
       // Clean up.
       core.readMessage = origReadMessage;
     });
   }
 });