Update Layer Hoisting to store its atlas texture in the resource cache

src/gpu/SkGpuDevice.cpp

Index: src/gpu/SkGpuDevice.cpp
diff --git a/src/gpu/SkGpuDevice.cpp b/src/gpu/SkGpuDevice.cpp
index c97d24809a2036c16d473437fd3b9bc56737e2f0..36e0342f78b2a522e1c1c47af8e1772f3a5b7b1f 100644
--- a/src/gpu/SkGpuDevice.cpp
+++ b/src/gpu/SkGpuDevice.cpp
@@ -2028,6 +2028,8 @@ bool SkGpuDevice::EXPERIMENTAL_drawPicture(SkCanvas* mainCanvas, const SkPicture
 
     SkMatrix initialMatrix = mainCanvas->getTotalMatrix();
 
+    GrLayerHoister::Begin(fContext);
+
     GrLayerHoister::FindLayersToAtlas(fContext, mainPicture,
                                       initialMatrix,
                                       clipBounds,
@@ -2056,6 +2058,7 @@ bool SkGpuDevice::EXPERIMENTAL_drawPicture(SkCanvas* mainCanvas, const SkPicture
     GrLayerHoister::UnlockLayers(fContext, recycled);
     GrLayerHoister::UnlockLayers(fContext, atlasedNeedRendering);
     GrLayerHoister::UnlockLayers(fContext, atlasedRecycled);
+    GrLayerHoister::End(fContext);
 
     return true;
 #else