Adding grpc_dll project.
diff --git a/tools/run_tests/sources_and_headers.json b/tools/run_tests/sources_and_headers.json
index a5ff6b5..028f727 100644
--- a/tools/run_tests/sources_and_headers.json
+++ b/tools/run_tests/sources_and_headers.json
@@ -3417,6 +3417,18 @@
   {
     "deps": [
       "gpr", 
+      "grpc"
+    ], 
+    "headers": [], 
+    "language": "c", 
+    "name": "grpc_dll", 
+    "src": [
+      "grpc.def"
+    ]
+  }, 
+  {
+    "deps": [
+      "gpr", 
       "gpr_test_util", 
       "grpc"
     ],