Rename GrStencilBuffer to GrStencilAttachment

src/gpu/GrTest.cpp

Index: src/gpu/GrTest.cpp
diff --git a/src/gpu/GrTest.cpp b/src/gpu/GrTest.cpp
index aca7133215680ca1412076536155f3275707d4fe..a25548b9e796f1fa6354eb75a9e19faf92fe4fed 100644
--- a/src/gpu/GrTest.cpp
+++ b/src/gpu/GrTest.cpp
@@ -236,7 +236,7 @@ private:
         return false;
     }
 
-    bool attachStencilBufferToRenderTarget(GrStencilBuffer*, GrRenderTarget*) override {
+    bool attachStencilBufferToRenderTarget(GrStencilAttachment*, GrRenderTarget*) override {
         return false;
     }