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

content/browser/service_worker/service_worker_handle_unittest.cc

Index: content/browser/service_worker/service_worker_handle_unittest.cc
diff --git a/content/browser/service_worker/service_worker_handle_unittest.cc b/content/browser/service_worker/service_worker_handle_unittest.cc
index d5a2109d640e222502276e7a708cc63fa6ad66a3..4767ecb01b11c917f8c95d86ba0ae64779ba6c95 100644
--- a/content/browser/service_worker/service_worker_handle_unittest.cc
+++ b/content/browser/service_worker/service_worker_handle_unittest.cc
@@ -93,6 +93,9 @@ class ServiceWorkerHandleTest : public testing::Test {
     records.push_back(
         ServiceWorkerDatabase::ResourceRecord(10, version_->script_url(), 100));
     version_->script_cache_map()->SetResources(records);
+    version_->set_fetch_handler_existence(
+        ServiceWorkerVersion::FetchHandlerExistence::EXISTS);
+    version_->SetStatus(ServiceWorkerVersion::INSTALLING);
 
     // Make the registration findable via storage functions.
     helper_->context()->storage()->LazyInitialize(base::Bind(&base::DoNothing));
@@ -150,26 +153,19 @@ TEST_F(ServiceWorkerHandleTest, OnVersionStateChanged) {
   base::RunLoop().RunUntilIdle();
   EXPECT_EQ(SERVICE_WORKER_OK, status);
 
-  // ...update state to installing...
-  version_->SetStatus(ServiceWorkerVersion::INSTALLING);
-
-  // ...and update state to installed.
+  // ...update state to installed.
   version_->SetStatus(ServiceWorkerVersion::INSTALLED);
 
-  ASSERT_EQ(3UL, ipc_sink()->message_count());
+  ASSERT_EQ(2UL, ipc_sink()->message_count());
   ASSERT_EQ(0L, dispatcher_host_->bad_message_received_count_);
 
   // We should be sending 1. StartWorker,
   EXPECT_EQ(EmbeddedWorkerMsg_StartWorker::ID,
             ipc_sink()->GetMessageAt(0)->type());
-  // 2. StateChanged (state == Installing),
-  VerifyStateChangedMessage(handle->handle_id(),
-                            blink::WebServiceWorkerStateInstalling,
-                            ipc_sink()->GetMessageAt(1));
-  // 3. StateChanged (state == Installed).
+  // 2. StateChanged (state == Installed).
   VerifyStateChangedMessage(handle->handle_id(),
                             blink::WebServiceWorkerStateInstalled,
-                            ipc_sink()->GetMessageAt(2));
+                            ipc_sink()->GetMessageAt(1));
 }
 
 }  // namespace content