Nanobench running on Vulkan

tools/gpu/gl/GLTestContext.h

Index: tools/gpu/gl/GLTestContext.h
diff --git a/tools/gpu/gl/GLTestContext.h b/tools/gpu/gl/GLTestContext.h
index a940f8dce7a31489efae0210f562a962991746da..efe9d8f100f7f36f9792ad26f1a83fd9fece5763 100644
--- a/tools/gpu/gl/GLTestContext.h
+++ b/tools/gpu/gl/GLTestContext.h
@@ -47,6 +47,12 @@ public:
 
     void testAbandon() override;
 
+    /** Ensures all work is submitted to the GPU for execution. */
+    void submit() override;
+
+    /** Wait until all GPU work is finished. */
+    void finish() override;
+
     /**
      * Creates a new GL context of the same type and makes the returned context current
      * (if not null).