Remove SkImage getTexture call.

Change-Id: Ib9f3d8c58ee5736bfee03eaedff20f24b51d5ff9
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/275625
Reviewed-by: Robert Phillips <robertphillips@google.com>
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Greg Daniel <egdaniel@google.com>
diff --git a/src/gpu/GrBackendTextureImageGenerator.h b/src/gpu/GrBackendTextureImageGenerator.h
index f2e20d1..a85ead6 100644
--- a/src/gpu/GrBackendTextureImageGenerator.h
+++ b/src/gpu/GrBackendTextureImageGenerator.h
@@ -11,6 +11,7 @@
 #include "include/gpu/GrBackendSurface.h"
 #include "include/private/GrResourceKey.h"
 #include "include/private/SkMutex.h"
+#include "src/gpu/GrTexture.h"
 
 class GrSemaphore;