Remove SkAutoTUnref and SkAutoTDelete from public includes.

tools/gpu/GrTest.cpp

Index: tools/gpu/GrTest.cpp
diff --git a/tools/gpu/GrTest.cpp b/tools/gpu/GrTest.cpp
index 60c10e8226ed22678eca855ba647c47aeb8cae32..387ef32ffd0b424d228a8644d5bfd47b66f57656 100644
--- a/tools/gpu/GrTest.cpp
+++ b/tools/gpu/GrTest.cpp
@@ -337,15 +337,16 @@ private:
         return nullptr;
     }
 
-    GrTexture* onWrapBackendTexture(const GrBackendTextureDesc&,
-                                    GrWrapOwnership) override { return nullptr; }
+    sk_sp<GrTexture> onWrapBackendTexture(const GrBackendTextureDesc&, GrWrapOwnership) override {
+        return nullptr;
+    }
 
-    GrRenderTarget* onWrapBackendRenderTarget(const GrBackendRenderTargetDesc&,
-                                              GrWrapOwnership) override {
+    sk_sp<GrRenderTarget> onWrapBackendRenderTarget(const GrBackendRenderTargetDesc&,
+                                                    GrWrapOwnership) override {
         return nullptr;
     }
 
-    GrRenderTarget* onWrapBackendTextureAsRenderTarget(const GrBackendTextureDesc&) override {
+    sk_sp<GrRenderTarget> onWrapBackendTextureAsRenderTarget(const GrBackendTextureDesc&) override {
         return nullptr;
     }