Revert of Mojo EDK: Introduce MojoQueryHandleSignalsState API

mojo/android/javatests/src/org/chromium/mojo/HandleMock.java

 // Copyright 2014 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.
 
 package org.chromium.mojo;
 
 import org.chromium.mojo.system.Core;
-import org.chromium.mojo.system.Core.HandleSignalsState;
+import org.chromium.mojo.system.Core.WaitResult;
 import org.chromium.mojo.system.DataPipe;
 import org.chromium.mojo.system.DataPipe.ConsumerHandle;
 import org.chromium.mojo.system.DataPipe.ProducerHandle;
 import org.chromium.mojo.system.Handle;
 import org.chromium.mojo.system.MessagePipeHandle;
 import org.chromium.mojo.system.MojoResult;
 import org.chromium.mojo.system.ResultAnd;
 import org.chromium.mojo.system.SharedBufferHandle;
 import org.chromium.mojo.system.UntypedHandle;
 import org.chromium.mojo.system.impl.CoreImpl;
 
 import java.nio.ByteBuffer;
 import java.util.List;
 
 /**
  * A mock handle, that does nothing.
  */
 public class HandleMock implements UntypedHandle, MessagePipeHandle,
         ProducerHandle, ConsumerHandle, SharedBufferHandle {
 
     /**
      * @see Handle#close()
      */
     @Override
     public void close() {
         // Do nothing.
     }
 
     /**
-     * @see Handle#querySignalsState()
+     * @see Handle#wait(Core.HandleSignals, long)
      */
     @Override
-    public HandleSignalsState querySignalsState() {
-        return null;
+    public WaitResult wait(Core.HandleSignals signals, long deadline) {
+        // Do nothing.
+        WaitResult result = new WaitResult();
+        result.setMojoResult(MojoResult.OK);
+        return result;
     }
 
     /**
      * @see Handle#isValid()
      */
     @Override
     public boolean isValid() {
         return true;
     }
 
@@ skipping 164 matching lines @@
 
     /**
      * @see SharedBufferHandle#unmap(java.nio.ByteBuffer)
      */
     @Override
     public void unmap(ByteBuffer buffer) {
         // Do nothing.
     }
 
 }