Adds multiple forms of MediaStreamTrack constraints

third_party/WebKit/Source/modules/mediastream/MediaConstraintsImpl.h

 /*
  * Copyright (C) 2012 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:
  *
  * 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 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 MediaConstraintsImpl_h
 #define MediaConstraintsImpl_h
 
+#include "modules/ModulesExport.h"
 #include "modules/mediastream/MediaErrorState.h"
 #include "public/platform/WebMediaConstraints.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
 class Dictionary;
-class ExceptionState;
 class MediaTrackConstraints;
 
 namespace MediaConstraintsImpl {
 
 WebMediaConstraints create();
 WebMediaConstraints create(ExecutionContext*, const Dictionary&, MediaErrorState&);
 WebMediaConstraints create(ExecutionContext*, const MediaTrackConstraints&, MediaErrorState&);
 
-void convertConstraints(const WebMediaConstraints& input, MediaTrackConstraints& output);
+// Exported with MODULES_EXPORT for testing
+MODULES_EXPORT void convertConstraints(const WebMediaConstraints& input, MediaTrackConstraints& output);
+// Exported for testing only.
+MODULES_EXPORT WebMediaConstraints convertConstraintsToWeb(const MediaTrackConstraints&);
 }
 
 } // namespace blink
 
 #endif // MediaConstraintsImpl_h