Move op memory storage to GrContext (take 2)

TBR=bsalomon@google.com

Change-Id: I4a448694d4114d83cd3a720cfc8bd37de51733d1
Reviewed-on: https://skia-review.googlesource.com/135707
Reviewed-by: Greg Daniel <egdaniel@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
diff --git a/src/gpu/GrRenderTargetOpList.h b/src/gpu/GrRenderTargetOpList.h
index 00b9f5e..8629a7c 100644
--- a/src/gpu/GrRenderTargetOpList.h
+++ b/src/gpu/GrRenderTargetOpList.h
@@ -32,7 +32,8 @@
     using DstProxy = GrXferProcessor::DstProxy;
 
 public:
-    GrRenderTargetOpList(GrResourceProvider*, GrRenderTargetProxy*, GrAuditTrail*);
+    GrRenderTargetOpList(GrResourceProvider*, sk_sp<GrOpMemoryPool>,
+                         GrRenderTargetProxy*, GrAuditTrail*);
 
     ~GrRenderTargetOpList() override;
 
@@ -122,6 +123,8 @@
 private:
     friend class GrRenderTargetContextPriv; // for stencil clip state. TODO: this is invasive
 
+    void deleteOps();
+
     struct RecordedOp {
         RecordedOp(std::unique_ptr<GrOp> op, GrAppliedClip* appliedClip, const DstProxy* dstProxy)
                 : fOp(std::move(op)), fAppliedClip(appliedClip) {
@@ -130,7 +133,12 @@
             }
         }
 
-        ~RecordedOp() { }
+        ~RecordedOp() {
+            // The ops are stored in a GrMemoryPool so had better have been handled separately
+            SkASSERT(!fOp);
+        }
+
+        void deleteOp(GrOpMemoryPool* opMemoryPool);
 
         void visitProxies(const GrOp::VisitProxyFunc& func) const {
             if (fOp) {