Move ContentDecryptionModule* to platform/

public/platform/WebContentDecryptionModule.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 17 matching lines @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef WebContentDecryptionModule_h
 #define WebContentDecryptionModule_h
 
 #include "public/platform/WebContentDecryptionModuleSession.h"
 
 namespace WebKit {
 
-class WebContentDecryptionModule {
+class BLINK_PLATFORM_EXPORT WebContentDecryptionModule {
 public:
-    virtual ~WebContentDecryptionModule() { }
+    virtual ~WebContentDecryptionModule();
 
     // Must return non-null.
     virtual WebContentDecryptionModuleSession* createSession(WebContentDecryptionModuleSession::Client*) = 0;
 };
 
 } // namespace WebKit
 
 #endif // WebContentDecryptionModule_h