Add staging for skia CL 302643

This is part of a larger effort to force users to provide the
direct context for image manipulations that need it instead of
blindly talking to the context that created the image. See bug
for details.

Bug: skia:104662
Change-Id: I95709c65abeafcb8b1b126b3af3bb787ae970a0b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2299194
Commit-Queue: Adlai Holler <adlai@google.com>
Auto-Submit: Adlai Holler <adlai@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>
Cr-Commit-Position: refs/heads/master@{#789029}

skia/config/SkUserConfig.h

@@ -220,6 +220,9 @@ SK_API void SkDebugf_FileLine(const char* file,
 // Staging for https://review.skia.org/302290
 #define SK_IMAGE_MAKE_COLOR_TYPE_AND_SPACE_USE_SOURCE_CONTEXT
 
+// Staging for https://review.skia.org/302643
+#define SK_IMAGE_MAKE_TEXTURE_IMAGE_ALLOW_GR_CONTEXT
+
 ///////////////////////// Imported from BUILD.gn and skia_common.gypi
 
 /* In some places Skia can use static initializers for global initialization,