Move ENABLE_MEDIA_CAPTURE to a runtime flag

Source/platform/FileChooser.h

 /*
  * Copyright (C) 2006, 2007, 2008 Apple 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 38 matching lines @@
     const String path;
     const String displayName;
 };
 
 struct FileChooserSettings {
     bool allowsMultipleFiles;
     bool allowsDirectoryUpload;
     Vector<String> acceptMIMETypes;
     Vector<String> acceptFileExtensions;
     Vector<String> selectedFiles;
-#if ENABLE(MEDIA_CAPTURE)
     bool useMediaCapture;
-#endif
 
     // Returns a combined vector of acceptMIMETypes and acceptFileExtensions.
     Vector<String> PLATFORM_EXPORT acceptTypes() const;
 };
 
 class PLATFORM_EXPORT FileChooserClient {
 public:
     virtual void filesChosen(const Vector<FileChooserFileInfo>&) = 0;
     virtual ~FileChooserClient();
 
@@ skipping 24 matching lines @@
 private:
     FileChooser(FileChooserClient*, const FileChooserSettings&);
 
     FileChooserClient* m_client;
     FileChooserSettings m_settings;
 };
 
 } // namespace WebCore
 
 #endif // FileChooser_h