[worklets] Split up InProcessWorkerMessagingProxy into a base+worker class.

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

Index: third_party/WebKit/Source/core/workers/InProcessWorkerBase.cpp
diff --git a/third_party/WebKit/Source/core/workers/InProcessWorkerBase.cpp b/third_party/WebKit/Source/core/workers/InProcessWorkerBase.cpp
index 0714ccf249535d61a6d630fb3fbb1b95558314b6..48f02d0a910ccee21d4be534e6c36a0dd52f22e6 100644
--- a/third_party/WebKit/Source/core/workers/InProcessWorkerBase.cpp
+++ b/third_party/WebKit/Source/core/workers/InProcessWorkerBase.cpp
@@ -10,7 +10,7 @@
 #include "core/frame/LocalDOMWindow.h"
 #include "core/frame/csp/ContentSecurityPolicy.h"
 #include "core/inspector/InspectorInstrumentation.h"
-#include "core/workers/InProcessWorkerGlobalScopeProxy.h"
+#include "core/workers/InProcessWorkerMessagingProxy.h"
 #include "core/workers/WorkerScriptLoader.h"
 #include "core/workers/WorkerThread.h"
 #include "platform/network/ContentSecurityPolicyResponseHeaders.h"
@@ -30,7 +30,7 @@ InProcessWorkerBase::~InProcessWorkerBase()
     DCHECK(isMainThread());
     if (!m_contextProxy)
         return;
-    m_contextProxy->workerObjectDestroyed();
+    m_contextProxy->parentObjectDestroyed();
 }
 
 void InProcessWorkerBase::postMessage(ExecutionContext* context, PassRefPtr<SerializedScriptValue> message, const MessagePortArray& ports, ExceptionState& exceptionState)
@@ -69,7 +69,7 @@ bool InProcessWorkerBase::initialize(ExecutionContext* context, const String& ur
 void InProcessWorkerBase::terminate()
 {
     if (m_contextProxy)
-        m_contextProxy->terminateWorkerGlobalScope();
+        m_contextProxy->terminateGlobalScope();
 }
 
 void InProcessWorkerBase::stop()