Store context options on caps.

Committed: https://skia.googlesource.com/skia/+/f28cff71db2cbb1ff18a8fbf1e80ca761d1f69bc

Review URL: https://codereview.chromium.org/1158433006
diff --git a/bench/nanobench.cpp b/bench/nanobench.cpp
index 85685fb..2fba1f0 100644
--- a/bench/nanobench.cpp
+++ b/bench/nanobench.cpp
@@ -47,6 +47,8 @@
     SkAutoTDelete<GrContextFactory> gGrFactory;
 #endif
 
+    struct GrContextOptions;
+
 __SK_FORCE_IMAGE_DECODER_LINKING;
 
 static const int kAutoTuneLoops = 0;
@@ -844,7 +846,7 @@
     SkTaskGroup::Enabler enabled;
 
 #if SK_SUPPORT_GPU
-    GrContext::Options grContextOpts;
+    GrContextOptions grContextOpts;
     grContextOpts.fDrawPathToCompressedTexture = FLAGS_gpuCompressAlphaMasks;
     gGrFactory.reset(SkNEW_ARGS(GrContextFactory, (grContextOpts)));
 #endif