Yet more layer tracking logging

 Bug: 17208461

Change-Id: I55e7d0921eb565867e966d68b798b7b92c391b55
diff --git a/libs/hwui/OpenGLRenderer.cpp b/libs/hwui/OpenGLRenderer.cpp
index 0f36c06..dbd273d 100755
--- a/libs/hwui/OpenGLRenderer.cpp
+++ b/libs/hwui/OpenGLRenderer.cpp
@@ -605,6 +605,12 @@
     AutoFence fence;
 }
 
+void OpenGLRenderer::markLayersAsBuildLayers() {
+    for (size_t i = 0; i < mLayerUpdates.size(); i++) {
+        mLayerUpdates[i]->wasBuildLayered = true;
+    }
+}
+
 ///////////////////////////////////////////////////////////////////////////////
 // State management
 ///////////////////////////////////////////////////////////////////////////////