Make auto-dark a bit better

Handles transform of basic bitmaps
Tweak to always treat text as foreground

Test: builds, poked around with force_dark
Change-Id: I733d39e05067438335da5a7eac06111f66f1228d
diff --git a/libs/hwui/RenderNode.h b/libs/hwui/RenderNode.h
index 83b0c22..211dd2d 100644
--- a/libs/hwui/RenderNode.h
+++ b/libs/hwui/RenderNode.h
@@ -107,7 +107,7 @@
     bool isRenderable() const { return mDisplayList && !mDisplayList->isEmpty(); }
 
     bool hasProjectionReceiver() const {
-        return mDisplayList && mDisplayList->projectionReceiveIndex >= 0;
+        return mDisplayList && mDisplayList->containsProjectionReceiver();
     }
 
     const char* getName() const { return mName.string(); }