Use unions for interface control messages.

mojo/public/java/bindings/src/org/chromium/mojo/bindings/Interface.java

Index: mojo/public/java/bindings/src/org/chromium/mojo/bindings/Interface.java
diff --git a/mojo/public/java/bindings/src/org/chromium/mojo/bindings/Interface.java b/mojo/public/java/bindings/src/org/chromium/mojo/bindings/Interface.java
index c2bbc8ebddb4127bef1020b75395dd673b8ad691..50c4de5997f46e07d6697a7b01e5ad6e229160b9 100644
--- a/mojo/public/java/bindings/src/org/chromium/mojo/bindings/Interface.java
+++ b/mojo/public/java/bindings/src/org/chromium/mojo/bindings/Interface.java
@@ -186,15 +186,16 @@ public interface Interface extends ConnectionErrorHandler, Closeable {
             @Override
             public void queryVersion(final Callback1<Integer> callback) {
                 RunMessageParams message = new RunMessageParams();
-                message.reserved0 = 16;
-                message.reserved1 = 0;
-                message.queryVersion = new QueryVersion();
+                message.input = new RunInput();
+                message.input.setQueryVersion(new QueryVersion());
 
                 InterfaceControlMessagesHelper.sendRunMessage(getCore(), mMessageReceiver, message,
                         new Callback1<RunResponseMessageParams>() {
                             @Override
                             public void call(RunResponseMessageParams response) {
-                                mVersion = response.queryVersionResult.version;
+                                if (response.output.which() == RunOutput.Tag.QueryVersionResult) {
+                                    mVersion = response.output.getQueryVersionResult().version;
+                                }
                                 callback.call(mVersion);
                             }
                         });
@@ -210,10 +211,9 @@ public interface Interface extends ConnectionErrorHandler, Closeable {
                 }
                 mVersion = version;
                 RunOrClosePipeMessageParams message = new RunOrClosePipeMessageParams();
-                message.reserved0 = 16;
-                message.reserved1 = 0;
-                message.requireVersion = new RequireVersion();
-                message.requireVersion.version = version;
+                message.input = new RunOrClosePipeInput();
+                message.input.setRequireVersion(new RequireVersion());
+                message.input.getRequireVersion().version = version;
                 InterfaceControlMessagesHelper.sendRunOrClosePipeMessage(
                         getCore(), mMessageReceiver, message);
             }