Revert "Move makeDeferredRenderTargetContext calls to factory on RTC."

This reverts commit 1c16b430333c6384a8835d4e3671d2fb056ab45b.

Reason for revert: Red on tree
Original change's description:
> Move makeDeferredRenderTargetContext calls to factory on RTC.
> 
> Change-Id: Iaa8f5829d9f8650ff27a60f75fb2216f016ab85e
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/262058
> Commit-Queue: Greg Daniel <egdaniel@google.com>
> Reviewed-by: Brian Salomon <bsalomon@google.com>

TBR=egdaniel@google.com,bsalomon@google.com

Change-Id: I9e3c9d13c66b5437c87ad7136d283fa4ac81df1f
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/263019
Reviewed-by: Jim Van Verth <jvanverth@google.com>
Commit-Queue: Jim Van Verth <jvanverth@google.com>
diff --git a/src/gpu/effects/generated/GrRRectBlurEffect.h b/src/gpu/effects/generated/GrRRectBlurEffect.h
index 94b6ca1..5238abb 100644
--- a/src/gpu/effects/generated/GrRRectBlurEffect.h
+++ b/src/gpu/effects/generated/GrRRectBlurEffect.h
@@ -56,8 +56,9 @@
             // TODO: this could be SkBackingFit::kApprox, but:
             //   1) The texture coords would need to be updated.
             //   2) We would have to use GrTextureDomain::kClamp_Mode for the GaussianBlur.
-            auto rtc = GrRenderTargetContext::MakeWithFallback(
-                    context, GrColorType::kAlpha_8, nullptr, SkBackingFit::kExact, dimensions);
+            auto rtc = context->priv().makeDeferredRenderTargetContextWithFallback(
+                    SkBackingFit::kExact, dimensions.fWidth, dimensions.fHeight,
+                    GrColorType::kAlpha_8, nullptr);
             if (!rtc) {
                 return nullptr;
             }