Add API 31 sources

Test: None
Change-Id: Ie45894f7a232b2a15e2439b2527ca1813f334cc5

android/opengl/EGLDisplay.java

diff --git a/android/opengl/EGLDisplay.java b/android/opengl/EGLDisplay.java
new file mode 100644
index 0000000..e872761
--- /dev/null
+++ b/android/opengl/EGLDisplay.java
@@ -0,0 +1,37 @@
+/*
+**
+** Copyright 2012, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+
+package android.opengl;
+
+/**
+ * Wrapper class for native EGLDisplay objects.
+ *
+ */
+public class EGLDisplay extends EGLObjectHandle {
+    private EGLDisplay(long handle) {
+        super(handle);
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (!(o instanceof EGLDisplay)) return false;
+
+        EGLDisplay that = (EGLDisplay) o;
+        return getNativeHandle() == that.getNativeHandle();
+    }
+}