Correctly compute tex coords for rect layers.
Bug #4192695

This change also fixes Javadoc links in the framework.

Change-Id: Ia548bcb18baba5d6fe6a4a04a2278e3a3bd465b2
diff --git a/libs/hwui/OpenGLRenderer.cpp b/libs/hwui/OpenGLRenderer.cpp
index dd0cca22..e926d99 100644
--- a/libs/hwui/OpenGLRenderer.cpp
+++ b/libs/hwui/OpenGLRenderer.cpp
@@ -647,10 +647,10 @@
 void OpenGLRenderer::composeLayerRegion(Layer* layer, const Rect& rect) {
 #if RENDER_LAYERS_AS_REGIONS
     if (layer->region.isRect()) {
-        const android::Rect& bounds = layer->region.getBounds();
-        layer->regionRect.set(bounds.leftTop().x, bounds.leftTop().y,
-                bounds.rightBottom().x, bounds.rightBottom().y);
+        layer->setRegionAsRect();
+
         composeLayerRect(layer, layer->regionRect);
+
         layer->region.clear();
         return;
     }