Refugee from Dead Machine 4: MDB Monster

include/gpu/GrDrawContext.h

Index: include/gpu/GrDrawContext.h
diff --git a/include/gpu/GrDrawContext.h b/include/gpu/GrDrawContext.h
index 2a1d016541a11e83814fc19818752a86779f732d..81380f47b207db04a8f514643cc14c53397ef9bb 100644
--- a/include/gpu/GrDrawContext.h
+++ b/include/gpu/GrDrawContext.h
@@ -24,6 +24,7 @@ class GrRenderTarget;
 class GrStrokeInfo;
 class GrSurface;
 class GrTextContext;
+class GrTexture;
 class SkDrawFilter;
 struct SkIPoint;
 struct SkIRect;
@@ -42,6 +43,14 @@ class SK_API GrDrawContext : public SkRefCnt {
 public:
     ~GrDrawContext() override;
 
+    // This closes off other's draw commands since at this point in its

[bsalomon, 2015/07/08 19:06:36]

It looks like the user of a GrDrawContext is responsible for explicitly
inserting the dependencies, but don't we have all the info we need to insert
them implicitly?

+    // execution its result is needed by the current draw context.
+    void uses(GrDrawContext* other) {}
+
+    // TODO: ideally we would know if this guy resulted from some draws
+    void uses(GrTexture* tex) {}
+    //void done() {}
+
     void copySurface(GrRenderTarget* dst, GrSurface* src,
                      const SkIRect& srcRect, const SkIPoint& dstPoint);