Improve 'Selection' exception messages.

Source/bindings/v8/ExceptionMessages.h

Index: Source/bindings/v8/ExceptionMessages.h
diff --git a/Source/modules/mediastream/URLMediaStream.h b/Source/bindings/v8/ExceptionMessages.h
similarity index 86%
copy from Source/modules/mediastream/URLMediaStream.h
copy to Source/bindings/v8/ExceptionMessages.h
index 781eeca749e1266889f94d39a58eef8e157c9f67..0bd249bf46b37946a47378297bcd2f828d5c5019 100644
--- a/Source/modules/mediastream/URLMediaStream.h
+++ b/Source/bindings/v8/ExceptionMessages.h
@@ -28,21 +28,18 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef URLMediaStream_h
-#define URLMediaStream_h
+#ifndef ExceptionMessages_h
+#define ExceptionMessages_h
 
-#include "wtf/Forward.h"
+#include "wtf/text/WTFString.h"
 
 namespace WebCore {
 
-class MediaStream;
-class ScriptExecutionContext;
-
-class URLMediaStream {
+class ExceptionMessages {
 public:
-    static String createObjectURL(ScriptExecutionContext*, MediaStream*);
+    static String failedToExecute(const String& method, const String& type, const String& detail);
 };
 
 } // namespace WebCore
 
-#endif
+#endif // ExceptionMessages_h