Move more utils into paintutils

Change-Id: I1eb3fd52386bc61a592da235533e40b509eeec24
diff --git a/libs/hwui/DeferredLayerUpdater.cpp b/libs/hwui/DeferredLayerUpdater.cpp
index 38f2363f..7038334 100644
--- a/libs/hwui/DeferredLayerUpdater.cpp
+++ b/libs/hwui/DeferredLayerUpdater.cpp
@@ -47,7 +47,8 @@
 }
 
 void DeferredLayerUpdater::setPaint(const SkPaint* paint) {
-    OpenGLRenderer::getAlphaAndModeDirect(paint, &mAlpha, &mMode);
+    mAlpha = PaintUtils::getAlphaDirect(paint);
+    mMode = PaintUtils::getXfermodeDirect(paint);
     SkColorFilter* colorFilter = (paint) ? paint->getColorFilter() : nullptr;
     SkRefCnt_SafeAssign(mColorFilter, colorFilter);
 }