[Origin Trials] Install origin trial bindings on V8 context conditionally

third_party/WebKit/Source/core/workers/WorkerThread.cpp

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 15 matching lines @@
 
 #include "core/workers/WorkerThread.h"
 
 #include "bindings/core/v8/Microtask.h"
 #include "bindings/core/v8/ScriptSourceCode.h"
 #include "bindings/core/v8/V8GCController.h"
 #include "bindings/core/v8/V8IdleTaskRunner.h"
 #include "core/inspector/InspectorInstrumentation.h"
 #include "core/inspector/InspectorTaskRunner.h"
 #include "core/inspector/WorkerThreadDebugger.h"
+#include "core/origin_trials/OriginTrialContext.h"
 #include "core/workers/WorkerBackingThread.h"
 #include "core/workers/WorkerClients.h"
 #include "core/workers/WorkerReportingProxy.h"
 #include "core/workers/WorkerThreadStartupData.h"
 #include "platform/ThreadSafeFunctional.h"
 #include "platform/WaitableEvent.h"
 #include "platform/WebThreadSupportingGC.h"
 #include "platform/heap/SafePoint.h"
 #include "platform/heap/ThreadState.h"
 #include "platform/weborigin/KURL.h"
@@ skipping 287 matching lines @@
 
         // Optimize for memory usage instead of latency for the worker isolate.
         isolate()->IsolateInBackgroundNotification();
         m_workerGlobalScope = createWorkerGlobalScope(std::move(startupData));
         m_workerGlobalScope->scriptLoaded(sourceCode.length(), cachedMetaData.get() ? cachedMetaData->size() : 0);
 
         // Notify proxy that a new WorkerGlobalScope has been created and started.
         m_workerReportingProxy.workerGlobalScopeStarted(m_workerGlobalScope.get());
 
         WorkerOrWorkletScriptController* scriptController = m_workerGlobalScope->scriptController();
-        if (!scriptController->isExecutionForbidden())
+        if (!scriptController->isExecutionForbidden()) {
             scriptController->initializeContextIfNeeded();
+
+            // If Origin Trials have been registered before the V8 context was ready,
+            // then inject them into the context now
+            ExecutionContext* executionContext = m_workerGlobalScope->getExecutionContext();
+            if (executionContext) {
+                OriginTrialContext* originTrialContext = OriginTrialContext::from(executionContext);
+                if (originTrialContext)
+                    originTrialContext->initializePendingFeatures();
+            }
+        }
     }
 
     if (startMode == PauseWorkerGlobalScopeOnStart)
         startRunningDebuggerTasksOnPause();
 
     if (m_workerGlobalScope->scriptController()->isContextInitialized()) {
         m_workerReportingProxy.didInitializeWorkerContext();
         v8::HandleScope handleScope(isolate());
         Platform::current()->workerContextCreated(m_workerGlobalScope->scriptController()->context());
     }
@@ skipping 99 matching lines @@
 
 void WorkerThread::runDebuggerTaskDontWaitOnWorkerThread()
 {
     DCHECK(isCurrentThread());
     std::unique_ptr<CrossThreadClosure> task = m_inspectorTaskRunner->takeNextTask(InspectorTaskRunner::DontWaitForTask);
     if (task)
         (*task)();
 }
 
 } // namespace blink