Expose performance.memory in workers

Source/core/workers/WorkerMessagingProxy.cpp

Index: Source/core/workers/WorkerMessagingProxy.cpp
diff --git a/Source/core/workers/WorkerMessagingProxy.cpp b/Source/core/workers/WorkerMessagingProxy.cpp
index a34d8e19b29c25fb912eee09f417ee47a3e82560..b3ecd62c32908fd19518602f8917792221001b3e 100644
--- a/Source/core/workers/WorkerMessagingProxy.cpp
+++ b/Source/core/workers/WorkerMessagingProxy.cpp
@@ -35,6 +35,7 @@
 #include "core/events/MessageEvent.h"
 #include "core/frame/ContentSecurityPolicy.h"
 #include "core/frame/DOMWindow.h"
+#include "core/frame/Settings.h"
 #include "core/inspector/InspectorInstrumentation.h"
 #include "core/inspector/ScriptCallStack.h"
 #include "core/inspector/WorkerDebuggerAgent.h"
@@ -113,8 +114,9 @@ void WorkerMessagingProxy::startWorkerGlobalScope(const KURL& scriptURL, const S
 
     OwnPtr<WorkerThreadStartupData> startupData = WorkerThreadStartupData::create(scriptURL, userAgent, sourceCode, startMode, document->contentSecurityPolicy()->deprecatedHeader(), document->contentSecurityPolicy()->deprecatedHeaderType(), m_workerClients.release());
     double originTime = document->loader() ? document->loader()->timing()->referenceMonotonicTime() : monotonicallyIncreasingTime();
+    bool memoryInfoEnabled = document->settings() ? document->settings()->memoryInfoEnabled() : false;
 
-    RefPtr<DedicatedWorkerThread> thread = DedicatedWorkerThread::create(*this, *m_workerObjectProxy.get(), originTime, startupData.release());
+    RefPtr<DedicatedWorkerThread> thread = DedicatedWorkerThread::create(*this, *m_workerObjectProxy.get(), originTime, memoryInfoEnabled, startupData.release());
     workerThreadCreated(thread);
     thread->start();
     InspectorInstrumentation::didStartWorkerGlobalScope(m_executionContext.get(), this, scriptURL);