Use process/control messages (instead of RVH messages) for layout tests.

third_party/WebKit/LayoutTests/http/tests/inspector/service-workers/service-worker-agents-expected.txt

Index: third_party/WebKit/LayoutTests/http/tests/inspector/service-workers/service-worker-agents-expected.txt
diff --git a/third_party/WebKit/LayoutTests/http/tests/inspector/service-workers/service-worker-agents-expected.txt b/third_party/WebKit/LayoutTests/http/tests/inspector/service-workers/service-worker-agents-expected.txt
index fd456a284a070b67d9abce51b970228439101bd3..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 100644
--- a/third_party/WebKit/LayoutTests/http/tests/inspector/service-workers/service-worker-agents-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/inspector/service-workers/service-worker-agents-expected.txt
@@ -1,41 +0,0 @@
-Tests the way service workers don't enable DOM agent and does enable Debugger agent.
-
-Debugger-related command should be issued: {
-    "id": "<id>",
-    "method": "ServiceWorker.sendMessage",
-    "params": {
-        "workerId": "<id>",
-        "message": {
-            "id": "<id>",
-            "method": "Worker.sendMessageToWorker",
-            "params": {
-                "workerId": "<id>",
-                "message": {
-                    "id": "<id>",
-                    "method": "Debugger.enable"
-                }
-            }
-        }
-    }
-}
-Suspending targets.
-Resuming targets.
-Debugger-related command should be issued: {
-    "id": "<id>",
-    "method": "ServiceWorker.sendMessage",
-    "params": {
-        "workerId": "<id>",
-        "message": {
-            "id": "<id>",
-            "method": "Worker.sendMessageToWorker",
-            "params": {
-                "workerId": "<id>",
-                "message": {
-                    "id": "<id>",
-                    "method": "Debugger.enable"
-                }
-            }
-        }
-    }
-}
-