Worker: Introduce an observation mechanism for WorkerThread termination

third_party/WebKit/Source/core/workers/WorkerThreadTestHelper.h

 // Copyright 2016 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 "bindings/core/v8/SourceLocation.h"
 #include "bindings/core/v8/V8CacheOptions.h"
 #include "bindings/core/v8/V8GCController.h"
 #include "core/frame/csp/ContentSecurityPolicy.h"
 #include "core/inspector/ConsoleMessage.h"
 #include "core/workers/WorkerBackingThread.h"
 #include "core/workers/WorkerClients.h"
 #include "core/workers/WorkerLoaderProxy.h"
 #include "core/workers/WorkerReportingProxy.h"
 #include "core/workers/WorkerThread.h"
+#include "core/workers/WorkerThreadLifecycleObserver.h"
 #include "core/workers/WorkerThreadStartupData.h"
 #include "platform/ThreadSafeFunctional.h"
 #include "platform/WaitableEvent.h"
 #include "platform/WebThreadSupportingGC.h"
 #include "platform/heap/Handle.h"
 #include "platform/network/ContentSecurityPolicyParsers.h"
 #include "platform/weborigin/KURL.h"
 #include "platform/weborigin/SecurityOrigin.h"
 #include "public/platform/WebAddressSpace.h"
 #include "testing/gmock/include/gmock/gmock.h"
@@ skipping 36 matching lines @@
     MOCK_METHOD1(reportConsoleMessage, void(ConsoleMessage*));
     MOCK_METHOD1(postMessageToPageInspector, void(const String&));
     MOCK_METHOD0(postWorkerConsoleAgentEnabled, void());
     MOCK_METHOD1(didEvaluateWorkerScript, void(bool success));
     MOCK_METHOD1(workerGlobalScopeStarted, void(WorkerGlobalScope*));
     MOCK_METHOD0(workerGlobalScopeClosed, void());
     MOCK_METHOD0(workerThreadTerminated, void());
     MOCK_METHOD0(willDestroyWorkerGlobalScope, void());
 };
 
+class MockWorkerThreadLifecycleObserver final : public GarbageCollectedFinalized<MockWorkerThreadLifecycleObserver>, public WorkerThreadLifecycleObserver {
+    USING_GARBAGE_COLLECTED_MIXIN(MockWorkerThreadLifecycleObserver);
+    WTF_MAKE_NONCOPYABLE(MockWorkerThreadLifecycleObserver);
+public:
+    explicit MockWorkerThreadLifecycleObserver(WorkerThreadContext* context)
+        : WorkerThreadLifecycleObserver(context) { }
+
+    MOCK_METHOD0(contextDestroyed, void());
+};
+
 class WorkerThreadForTest : public WorkerThread {
 public:
     WorkerThreadForTest(
         WorkerLoaderProxyProvider* mockWorkerLoaderProxyProvider,
         WorkerReportingProxy& mockWorkerReportingProxy)
         : WorkerThread(WorkerLoaderProxy::create(mockWorkerLoaderProxyProvider), mockWorkerReportingProxy)
         , m_workerBackingThread(WorkerBackingThread::createForTest("Test thread"))
         , m_scriptLoadedEvent(adoptPtr(new WaitableEvent()))
     {
     }
@@ skipping 78 matching lines @@
 private:
     WorkerThreadForTest* m_thread;
 };
 
 inline WorkerGlobalScope* WorkerThreadForTest::createWorkerGlobalScope(PassOwnPtr<WorkerThreadStartupData> startupData)
 {
     return new FakeWorkerGlobalScope(startupData->m_scriptURL, startupData->m_userAgent, this, std::move(startupData->m_starterOriginPrivilegeData), std::move(startupData->m_workerClients));
 }
 
 } // namespace blink