Add ThreadedRendererCompat for Launcher use

Bug: 75985430
Change-Id: Ia9a7c68cdff8a3263aa75f1178cb90bf4cf6f3de
diff --git a/packages/SystemUI/shared/src/com/android/systemui/shared/system/ThreadedRendererCompat.java b/packages/SystemUI/shared/src/com/android/systemui/shared/system/ThreadedRendererCompat.java
new file mode 100644
index 0000000..bf88a29
--- /dev/null
+++ b/packages/SystemUI/shared/src/com/android/systemui/shared/system/ThreadedRendererCompat.java
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2018 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 com.android.systemui.shared.system;
+
+import android.view.ThreadedRenderer;
+
+/**
+ * @see ThreadedRenderer
+ */
+public class ThreadedRendererCompat {
+
+    public static int EGL_CONTEXT_PRIORITY_HIGH_IMG = 0x3101;
+    public static int EGL_CONTEXT_PRIORITY_MEDIUM_IMG = 0x3102;
+    public static int EGL_CONTEXT_PRIORITY_LOW_IMG = 0x3103;
+
+    public static void setContextPriority(int priority) {
+        ThreadedRenderer.setContextPriority(priority);
+    }
+}