Remove SkSurface::MakeFromBackendTexture variant that doesn't take SkColorType

Bug: skia:6718
Change-Id: I8289c54ca9a5f89d10dc0b0dfe750d4fd1da0b64
Reviewed-on: https://skia-review.googlesource.com/115102
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
diff --git a/dm/DMSrcSink.cpp b/dm/DMSrcSink.cpp
index 43992a8..3c4ce65 100644
--- a/dm/DMSrcSink.cpp
+++ b/dm/DMSrcSink.cpp
@@ -1869,7 +1869,7 @@
                     nullptr, info.width(), info.height(), info.colorType(), true, GrMipMapped::kNo);
             surface = SkSurface::MakeFromBackendTexture(context, backendTexture,
                                                         kTopLeft_GrSurfaceOrigin, fSampleCount,
-                                                        info.refColorSpace(), &props);
+                                                        fColorType, info.refColorSpace(), &props);
             break;
         case SkCommandLineConfigGpu::SurfType::kBackendRenderTarget:
             if (1 == fSampleCount) {