Rename GrStencilBuffer to GrStencilAttachment

src/gpu/GrRenderTargetPriv.h

Index: src/gpu/GrRenderTargetPriv.h
diff --git a/src/gpu/GrRenderTargetPriv.h b/src/gpu/GrRenderTargetPriv.h
index 92ee30e49f68531077371a45a32a886d6e241175..316eb1d1c700ebf2fffd5734620796405b9aff15 100644
--- a/src/gpu/GrRenderTargetPriv.h
+++ b/src/gpu/GrRenderTargetPriv.h
@@ -16,17 +16,17 @@
 class GrRenderTargetPriv {
 public:
     /**
-     * GrStencilBuffer is not part of the public API.
+     * GrStencilAttachment is not part of the public API.
      */
-    GrStencilBuffer* getStencilBuffer() const { return fRenderTarget->fStencilBuffer; }
+    GrStencilAttachment* getStencilBuffer() const { return fRenderTarget->fStencilBuffer; }
 
     /**
      * If this render target already has a stencil buffer, return it. Otherwise attempt to attach
      * one.
      */
-    GrStencilBuffer* attachStencilBuffer() const;
+    GrStencilAttachment* attachStencilBuffer() const;
 
-    void didAttachStencilBuffer(GrStencilBuffer*);
+    void didAttachStencilBuffer(GrStencilAttachment*);
 
 private:
     explicit GrRenderTargetPriv(GrRenderTarget* renderTarget) : fRenderTarget(renderTarget) {}