Rm makeRenderTargetContext in favor of deferred version (take 3)

This is a reland of: https://skia-review.googlesource.com/c/13001/ (Rm makeRenderTargetContext in favor of deferred version)

TBR=bsalomon@google.com

Change-Id: If81f4d9fb889c091cd37ffde133d906fb3e37773
Reviewed-on: https://skia-review.googlesource.com/14027
Commit-Queue: Robert Phillips <robertphillips@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>
diff --git a/tests/ImageStorageTest.cpp b/tests/ImageStorageTest.cpp
index f3e3482..dc4d212 100644
--- a/tests/ImageStorageTest.cpp
+++ b/tests/ImageStorageTest.cpp
@@ -140,8 +140,8 @@
                                                  SkBudgeted::kYes, test.fData.get(), 0);
 
                 sk_sp<GrRenderTargetContext> rtContext =
-                    context->makeRenderTargetContext(SkBackingFit::kExact, kS, kS,
-                                                     kRGBA_8888_GrPixelConfig, nullptr);
+                    context->makeDeferredRenderTargetContext(SkBackingFit::kExact, kS, kS,
+                                                             kRGBA_8888_GrPixelConfig, nullptr);
                 GrPaint paint;
                 paint.setPorterDuffXPFactory(SkBlendMode::kSrc);
                 paint.addColorFragmentProcessor(TestFP::Make(context->resourceProvider(),