Remove OwnPtr from Blink.

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 472928bcb1daacf8203b1bf48e18ea0ef76ec9fe..6990487f365860d2dffe2157c70718ba97312791 100644
--- a/third_party/WebKit/Source/core/workers/InProcessWorkerBase.cpp
+++ b/third_party/WebKit/Source/core/workers/InProcessWorkerBase.cpp
@@ -14,6 +14,7 @@
 #include "core/workers/WorkerScriptLoader.h"
 #include "core/workers/WorkerThread.h"
 #include "platform/network/ContentSecurityPolicyResponseHeaders.h"
+#include <memory>
 
 namespace blink {
 
@@ -36,7 +37,7 @@ void InProcessWorkerBase::postMessage(ExecutionContext* context, PassRefPtr<Seri
 {
     DCHECK(m_contextProxy);
     // Disentangle the port in preparation for sending it to the remote context.
-    OwnPtr<MessagePortChannelArray> channels = MessagePort::disentanglePorts(context, ports, exceptionState);
+    std::unique_ptr<MessagePortChannelArray> channels = MessagePort::disentanglePorts(context, ports, exceptionState);
     if (exceptionState.hadException())
         return;
     m_contextProxy->postMessageToWorkerGlobalScope(message, std::move(channels));