Use std::unique_ptr<> for WebTaskRunner::clone

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

Index: third_party/WebKit/Source/core/workers/WorkerGlobalScope.cpp
diff --git a/third_party/WebKit/Source/core/workers/WorkerGlobalScope.cpp b/third_party/WebKit/Source/core/workers/WorkerGlobalScope.cpp
index b28599cf51da7eccb63ba592cb13fe9d573fd0bb..5a61b752a8f78409d2159e0dc5eec0a9dd55d0b9 100644
--- a/third_party/WebKit/Source/core/workers/WorkerGlobalScope.cpp
+++ b/third_party/WebKit/Source/core/workers/WorkerGlobalScope.cpp
@@ -63,7 +63,6 @@
 #include "wtf/RefPtr.h"
 
 namespace blink {
-
 namespace {
 
 void removeURLFromMemoryCacheInternal(const KURL& url)
@@ -297,7 +296,7 @@ WorkerGlobalScope::WorkerGlobalScope(const KURL& url, const String& userAgent, W
     , m_closing(false)
     , m_eventQueue(WorkerEventQueue::create(this))
     , m_workerClients(workerClients)
-    , m_timers(Platform::current()->currentThread()->scheduler()->timerTaskRunner()->adoptClone())
+    , m_timers(Platform::current()->currentThread()->scheduler()->timerTaskRunner()->clone())
     , m_timeOrigin(timeOrigin)
     , m_consoleMessageStorage(new ConsoleMessageStorage())
 {