Update SkSurface MakeFromBackend* factories to take an SkColorType.

Bug: skia:
Change-Id: Ib1b03b1181ec937843eac2e8d8cb03ebe53e32c1
Reviewed-on: https://skia-review.googlesource.com/86760
Commit-Queue: Greg Daniel <egdaniel@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
diff --git a/tests/WritePixelsTest.cpp b/tests/WritePixelsTest.cpp
index bfa0d4d..f909190 100644
--- a/tests/WritePixelsTest.cpp
+++ b/tests/WritePixelsTest.cpp
@@ -430,8 +430,14 @@
         for (int sampleCnt : {0, 4}) {
             GrBackendTexture backendTex = context->getGpu()->createTestingOnlyBackendTexture(
                     nullptr, DEV_W, DEV_H, kSkia8888_GrPixelConfig, true, GrMipMapped::kNo);
+            SkColorType colorType;
+            if (kRGBA_8888_GrPixelConfig == kSkia8888_GrPixelConfig) {
+                colorType = kRGBA_8888_SkColorType;
+            } else {
+                colorType = kBGRA_8888_SkColorType;
+            }
             sk_sp<SkSurface> surface(SkSurface::MakeFromBackendTextureAsRenderTarget(
-                    context, backendTex, origin, sampleCnt, nullptr, nullptr));
+                    context, backendTex, origin, sampleCnt, colorType, nullptr, nullptr));
             if (!surface) {
                 context->getGpu()->deleteTestingOnlyBackendTexture(&backendTex);
                 continue;