Use tri-state enum for the existence of Fetch Handler in ServiceWorkerVersion.

content/browser/service_worker/service_worker_request_handler_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 "content/browser/service_worker/service_worker_request_handler.h"
 
 #include <utility>
 
 #include "base/run_loop.h"
 #include "content/browser/fileapi/mock_url_request_delegate.h"
@@ skipping 44 matching lines @@
             kMockProviderId, SERVICE_WORKER_PROVIDER_FOR_WINDOW,
             ServiceWorkerProviderHost::FrameSecurityLevel::SECURE,
             context()->AsWeakPtr(), nullptr));
     host->SetDocumentUrl(GURL("https://host/scope/"));
     provider_host_ = host->AsWeakPtr();
     context()->AddProviderHost(std::move(host));
 
     context()->storage()->LazyInitialize(base::Bind(&EmptyCallback));
     base::RunLoop().RunUntilIdle();
 
+    version_->set_fetch_handler_existence(
+        ServiceWorkerVersion::FetchHandlerExistence::EXISTS);
     version_->SetStatus(ServiceWorkerVersion::ACTIVATED);
     registration_->SetActiveVersion(version_);
     context()->storage()->StoreRegistration(
         registration_.get(),
         version_.get(),
         base::Bind(&ServiceWorkerUtils::NoOpStatusCallback));
     provider_host_->AssociateRegistration(registration_.get(),
                                           false /* notify_controllerchange */);
     base::RunLoop().RunUntilIdle();
   }
@@ skipping 80 matching lines @@
   provider_host_->SetDocumentUrl(GURL(""));
   EXPECT_FALSE(InitializeHandlerCheck(
       "http://host/scope/doc", "GET", true, RESOURCE_TYPE_IMAGE));
   EXPECT_STREQ("", provider_host_->document_url().spec().c_str());
   EXPECT_FALSE(InitializeHandlerCheck(
       "https://host/scope/doc", "GET", true, RESOURCE_TYPE_IMAGE));
   EXPECT_STREQ("", provider_host_->document_url().spec().c_str());
 }
 
 }  // namespace content