Prepare CompositorWorker for per thread heap

third_party/WebKit/Source/modules/compositorworker/CompositorWorkerGlobalScope.cpp

 // Copyright 2015 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 "modules/compositorworker/CompositorWorkerGlobalScope.h"
 
 #include "bindings/core/v8/SerializedScriptValue.h"
 #include "core/workers/InProcessWorkerObjectProxy.h"
 #include "core/workers/WorkerThreadStartupData.h"
 #include "modules/EventTargetModules.h"
@@ skipping 20 matching lines @@
     , m_executingAnimationFrameCallbacks(false)
     , m_callbackCollection(this)
 {
     CompositorProxyClient::from(clients())->setGlobalScope(this);
 }
 
 CompositorWorkerGlobalScope::~CompositorWorkerGlobalScope()
 {
 }
 
+void CompositorWorkerGlobalScope::dispose()
+{
+    WorkerGlobalScope::dispose();
+    CompositorProxyClient::from(clients())->dispose();
+}
+
 DEFINE_TRACE(CompositorWorkerGlobalScope)
 {
     visitor->trace(m_callbackCollection);
     WorkerGlobalScope::trace(visitor);
 }
 
 const AtomicString& CompositorWorkerGlobalScope::interfaceName() const
 {
     return EventTargetNames::CompositorWorkerGlobalScope;
 }
@@ skipping 26 matching lines @@
     m_callbackCollection.executeCallbacks(highResTimeMs, highResTimeMs);
     return !m_callbackCollection.isEmpty();
 }
 
 CompositorWorkerThread* CompositorWorkerGlobalScope::thread() const
 {
     return static_cast<CompositorWorkerThread*>(WorkerGlobalScope::thread());
 }
 
 } // namespace blink