Add SkColorSpace to GrDrawContext

src/gpu/effects/GrConfigConversionEffect.cpp

Index: src/gpu/effects/GrConfigConversionEffect.cpp
diff --git a/src/gpu/effects/GrConfigConversionEffect.cpp b/src/gpu/effects/GrConfigConversionEffect.cpp
index 5294492e55dabda5184695716525404c5c919f30..f41e154556166e3b9ac4ca0e94f308d2fb35e651 100644
--- a/src/gpu/effects/GrConfigConversionEffect.cpp
+++ b/src/gpu/effects/GrConfigConversionEffect.cpp
@@ -174,9 +174,9 @@ void GrConfigConversionEffect::TestForPreservingPMConversions(GrContext* context
     }
 
     sk_sp<GrDrawContext> readDC(context->newDrawContext(SkBackingFit::kExact, kSize, kSize,
-                                                        kConfig));
+                                                        kConfig, nullptr));
     sk_sp<GrDrawContext> tempDC(context->newDrawContext(SkBackingFit::kExact, kSize, kSize,
-                                                        kConfig));
+                                                        kConfig, nullptr));
     if (!readDC || !tempDC) {
         return;
     }