Fix missing first frame

Bug: 26776366
Change-Id: I46258c0ff35fdefe5c9f2ee610c904b2dbe8c5d9
diff --git a/libs/hwui/LayerRenderer.cpp b/libs/hwui/LayerRenderer.cpp
index 5bce8ac..137316f 100644
--- a/libs/hwui/LayerRenderer.cpp
+++ b/libs/hwui/LayerRenderer.cpp
@@ -353,7 +353,7 @@
 
 bool LayerRenderer::copyLayer(RenderState& renderState, Layer* layer, SkBitmap* bitmap) {
     Caches& caches = Caches::getInstance();
-    if (layer && layer->getRenderTarget() != GL_NONE
+    if (layer && layer->isRenderable()
             && bitmap->width() <= caches.maxTextureSize
             && bitmap->height() <= caches.maxTextureSize) {