Move detached files from web/ to (core/modules)/exported.

third_party/WebKit/public/web/WebPerformance.h

 /*
  * Copyright (C) 2010 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 83 matching lines @@
   BLINK_EXPORT double ParseStop() const;
   BLINK_EXPORT double ParseBlockedOnScriptLoadDuration() const;
   BLINK_EXPORT double ParseBlockedOnScriptLoadFromDocumentWriteDuration() const;
   BLINK_EXPORT double ParseBlockedOnScriptExecutionDuration() const;
   BLINK_EXPORT double ParseBlockedOnScriptExecutionFromDocumentWriteDuration()
       const;
   BLINK_EXPORT double AuthorStyleSheetParseDurationBeforeFCP() const;
   BLINK_EXPORT double UpdateStyleDurationBeforeFCP() const;
 
 #if BLINK_IMPLEMENTATION
-  WebPerformance(Performance*);
-  WebPerformance& operator=(Performance*);
+  BLINK_EXPORT WebPerformance(Performance*);
+  BLINK_EXPORT WebPerformance& operator=(Performance*);
 #endif
 
  private:
   WebPrivatePtr<Performance> private_;
 };
 
 }  // namespace blink
 
 #endif