Remove GrBackendObject from tests (except image_from_yuv_textures)

This sets the stage for landing https://skia-review.googlesource.com/c/skia/+/82823 (Update SkImage::MakeFromYUVTexturesCopy to GrBackendTexture)

Change-Id: I2c62f23dc447b9ad55c0b5f06bcd6d7ca0ec4d2b
Reviewed-on: https://skia-review.googlesource.com/83920
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
diff --git a/tests/WritePixelsTest.cpp b/tests/WritePixelsTest.cpp
index 364cf1a..bfa0d4d 100644
--- a/tests/WritePixelsTest.cpp
+++ b/tests/WritePixelsTest.cpp
@@ -428,22 +428,19 @@
 
     for (auto& origin : { kTopLeft_GrSurfaceOrigin, kBottomLeft_GrSurfaceOrigin }) {
         for (int sampleCnt : {0, 4}) {
-            auto handle = context->getGpu()->createTestingOnlyBackendTexture(
-                    nullptr, DEV_W, DEV_H, kSkia8888_GrPixelConfig, true);
-            GrBackendTexture backendTexture = GrTest::CreateBackendTexture(
-                    ctxInfo.backend(), DEV_W, DEV_H, kSkia8888_GrPixelConfig, GrMipMapped::kNo,
-                    handle);
+            GrBackendTexture backendTex = context->getGpu()->createTestingOnlyBackendTexture(
+                    nullptr, DEV_W, DEV_H, kSkia8888_GrPixelConfig, true, GrMipMapped::kNo);
             sk_sp<SkSurface> surface(SkSurface::MakeFromBackendTextureAsRenderTarget(
-                    context, backendTexture, origin, sampleCnt, nullptr, nullptr));
+                    context, backendTex, origin, sampleCnt, nullptr, nullptr));
             if (!surface) {
-                context->getGpu()->deleteTestingOnlyBackendTexture(handle);
+                context->getGpu()->deleteTestingOnlyBackendTexture(&backendTex);
                 continue;
             }
 
             test_write_pixels(reporter, surface.get());
 
             surface.reset();
-            context->getGpu()->deleteTestingOnlyBackendTexture(handle);
+            context->getGpu()->deleteTestingOnlyBackendTexture(&backendTex);
         }
     }
 }