Move GrContextOptions to GrContext_Base and make GrContextThreadSafeProxy be derived from GrContext_Base

The main thrust of this CL is to bring the GrContextThreadSafeProxy into the fold.

Change-Id: I8f457d5b75c69f89beac3a0035b1c05ba5d3b931
Reviewed-on: https://skia-review.googlesource.com/c/188622
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
diff --git a/src/gpu/GrRecordingContext.cpp b/src/gpu/GrRecordingContext.cpp
index 9c8f7a4..ca19782 100644
--- a/src/gpu/GrRecordingContext.cpp
+++ b/src/gpu/GrRecordingContext.cpp
@@ -7,8 +7,10 @@
 
 #include "GrRecordingContext.h"
 
-GrRecordingContext::GrRecordingContext(GrBackendApi backend, uint32_t uniqueID)
-        : INHERITED(backend, uniqueID) {
+GrRecordingContext::GrRecordingContext(GrBackendApi backend,
+                                       const GrContextOptions& options,
+                                       uint32_t uniqueID)
+        : INHERITED(backend, options, uniqueID) {
 }
 
 GrRecordingContext::~GrRecordingContext() { }