WIP RasterCanvasLayerAllocator experiment 2

src/gpu/SkGpuDevice.cpp

Index: src/gpu/SkGpuDevice.cpp
diff --git a/src/gpu/SkGpuDevice.cpp b/src/gpu/SkGpuDevice.cpp
index 9ee71bc70877a3d08251cb0a18e086cf37b5c941..25d0c656ff7b4f4daab7002d5c605f5132330a5f 100644
--- a/src/gpu/SkGpuDevice.cpp
+++ b/src/gpu/SkGpuDevice.cpp
@@ -1774,7 +1774,8 @@ void SkGpuDevice::flush() {
 
 ///////////////////////////////////////////////////////////////////////////////
 
-SkBaseDevice* SkGpuDevice::onCreateDevice(const CreateInfo& cinfo, const SkPaint*) {
+SkBaseDevice* SkGpuDevice::onCreateDevice(const CreateInfo& cinfo, const SkPaint*,
+                                          SkRasterCanvasLayerAllocator*) {
     ASSERT_SINGLE_OWNER
 
     SkSurfaceProps props(this->surfaceProps().flags(), cinfo.fPixelGeometry);