service worker: use 200 OK for update requests even in the no update case

content/browser/service_worker/service_worker_version_unittest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <stdint.h>
 
 #include "base/macros.h"
 #include "base/run_loop.h"
 #include "content/browser/message_port_service.h"
 #include "content/browser/service_worker/embedded_worker_registry.h"
@@ skipping 272 matching lines @@
  public:
   MessageReceiverDisallowStart()
       : MessageReceiver() {}
   ~MessageReceiverDisallowStart() override {}
 
   enum class StartMode { STALL, FAIL, SUCCEED };
 
   void OnStartWorker(int embedded_worker_id,
                      int64_t service_worker_version_id,
                      const GURL& scope,
-                     const GURL& script_url) override {
+                     const GURL& script_url,
+                     bool pause_after_download) override {
     switch (mode_) {
       case StartMode::STALL:
         break;  // Do nothing.
       case StartMode::FAIL:
         OnStopWorker(embedded_worker_id);
         break;
       case StartMode::SUCCEED:
-        MessageReceiver::OnStartWorker(
-            embedded_worker_id, service_worker_version_id, scope, script_url);
+        MessageReceiver::OnStartWorker(embedded_worker_id,
+                                       service_worker_version_id, scope,
+                                       script_url, pause_after_download);
         break;
     }
   }
 
   void set_start_mode(StartMode mode) { mode_ = mode; }
 
  private:
   StartMode mode_ = StartMode::STALL;
   DISALLOW_COPY_AND_ASSIGN(MessageReceiverDisallowStart);
 };
@@ skipping 1115 matching lines @@
   helper_->SimulateSendSimpleEventResult(
       version_->embedded_worker()->embedded_worker_id(), request_id,
       blink::WebServiceWorkerEventResultRejected);
   runner->Run();
 
   // Verify callback was called with correct status.
   EXPECT_EQ(SERVICE_WORKER_ERROR_EVENT_WAITUNTIL_REJECTED, status);
 }
 
 }  // namespace content