Revert of remove guarded code - there are no more callers

src/effects/SkLayerRasterizer.cpp

Index: src/effects/SkLayerRasterizer.cpp
diff --git a/src/effects/SkLayerRasterizer.cpp b/src/effects/SkLayerRasterizer.cpp
index 720d2f0f88135e357e2ea8f8c38ea6257baef7e5..90fd59b585b6d9acde121aa18c714f313d795a2c 100644
--- a/src/effects/SkLayerRasterizer.cpp
+++ b/src/effects/SkLayerRasterizer.cpp
@@ -1,9 +1,11 @@
+
 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
+
 
 #include "SkLayerRasterizer.h"
 #include "SkDraw.h"
@@ -48,6 +50,17 @@
     clean_up_layers(const_cast<SkDeque*>(fLayers));
 }
 
+#ifdef SK_SUPPORT_LEGACY_LAYERRASTERIZER_API
+void SkLayerRasterizer::addLayer(const SkPaint& paint, SkScalar dx,
+                                 SkScalar dy) {
+    SkASSERT(fLayers);
+    SkLayerRasterizer_Rec* rec = (SkLayerRasterizer_Rec*)fLayers->push_back();
+
+    SkNEW_PLACEMENT_ARGS(&rec->fPaint, SkPaint, (paint));
+    rec->fOffset.set(dx, dy);
+}
+#endif
+
 static bool compute_bounds(const SkDeque& layers, const SkPath& path,
                            const SkMatrix& matrix,
                            const SkIRect* clipBounds, SkIRect* bounds) {