compositor-worker: Restrict the global interface in CompositorWorker.

Source/core/workers/WorkerGlobalScope.cpp

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  * Copyright (C) 2009, 2011 Google 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
@@ skipping 322 matching lines @@
 
 void WorkerGlobalScope::countFeature(UseCounter::Feature) const
 {
     // FIXME: How should we count features for shared/service workers?
 }
 
 void WorkerGlobalScope::countDeprecation(UseCounter::Feature feature) const
 {
     // FIXME: How should we count features for shared/service workers?
 
-    ASSERT(isSharedWorkerGlobalScope() || isServiceWorkerGlobalScope());
+    ASSERT(isSharedWorkerGlobalScope() || isServiceWorkerGlobalScope() || isCompositorWorkerGlobalScope());
     // For each deprecated feature, send console message at most once
     // per worker lifecycle.
     if (!m_deprecationWarningBits.hasRecordedMeasurement(feature)) {
         m_deprecationWarningBits.recordMeasurement(feature);
         ASSERT(!UseCounter::deprecationMessage(feature).isEmpty());
         ASSERT(executionContext());
         executionContext()->addConsoleMessage(ConsoleMessage::create(DeprecationMessageSource, WarningMessageLevel, UseCounter::deprecationMessage(feature)));
     }
 }
 
@@ skipping 56 matching lines @@
     visitor->trace(m_timers);
     visitor->trace(m_messageStorage);
     visitor->trace(m_pendingMessages);
     HeapSupplementable<WorkerGlobalScope>::trace(visitor);
 #endif
     ExecutionContext::trace(visitor);
     EventTargetWithInlineData::trace(visitor);
 }
 
 } // namespace blink