Add libhwui, to hardware accelerate the Canvas API using OpenGL ES 2.0.

This is the initial checkin to setup the library and turn on OEGL ES 2.0
in ViewRoot, not a functional renderer.

Change-Id: I6655c54166e2967da2e21e7d6dcfba78bf113b44
diff --git a/libs/hwui/UIOpenGLRenderer.h b/libs/hwui/UIOpenGLRenderer.h
new file mode 100644
index 0000000..b0fb73f
--- /dev/null
+++ b/libs/hwui/UIOpenGLRenderer.h
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2010 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.
+ */
+
+#ifndef ANDROID_UI_OPENGL_RENDERER_H
+#define ANDROID_UI_OPENGL_RENDERER_H
+
+namespace android {
+
+class UIOpenGLRenderer {
+public:
+    UIOpenGLRenderer();
+    ~UIOpenGLRenderer();
+
+    void setViewport(int width, int height);
+    void prepare();
+};
+
+}; // namespace android
+
+#endif // ANDROID_UI_OPENGL_RENDERER_H