[WIP] Support PerformanceResourceTiming for Service Worker Navigation Preload

third_party/WebKit/Source/core/timing/WorkerGlobalScopePerformance.h

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 13 matching lines @@
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef WorkerGlobalScopePerformance_h
 #define WorkerGlobalScopePerformance_h
 
+#include "core/CoreExport.h"
 #include "core/timing/WorkerPerformance.h"
 #include "core/workers/WorkerGlobalScope.h"
 #include "platform/Supplementable.h"
 #include "platform/heap/Handle.h"
 
 namespace blink {
 
 class WorkerGlobalScope;
 
-class WorkerGlobalScopePerformance final
+class CORE_EXPORT WorkerGlobalScopePerformance final
     : public GarbageCollected<WorkerGlobalScopePerformance>,
       public Supplement<WorkerGlobalScope> {
   USING_GARBAGE_COLLECTED_MIXIN(WorkerGlobalScopePerformance);
 
  public:
   static WorkerGlobalScopePerformance& From(WorkerGlobalScope&);
 
   static WorkerPerformance* performance(WorkerGlobalScope&);
 
   DECLARE_VIRTUAL_TRACE();
 
  private:
   explicit WorkerGlobalScopePerformance(WorkerGlobalScope&);
 
   WorkerPerformance* performance(WorkerGlobalScope*);
   static const char* SupplementName();
 
   Member<WorkerPerformance> performance_;
 };
 
 }  // namespace blink
 
 #endif  // WorkerGlobalScopePerformance_h