Rename WebCore to blink in Modules

Source/modules/mediasource/URLMediaSource.cpp

 /*
  * 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.
  */
 
 #include "config.h"
 #include "modules/mediasource/URLMediaSource.h"
 
 #include "core/dom/DOMURL.h"
 #include "modules/mediasource/MediaSource.h"
 #include "wtf/MainThread.h"
 
-namespace WebCore {
+namespace blink {
 
 String URLMediaSource::createObjectURL(ExecutionContext* executionContext, MediaSource* source)
 {
     // Since WebWorkers cannot obtain MediaSource objects, we should be on the main thread.
     ASSERT(isMainThread());
 
     if (!executionContext)
         return String();
     return DOMURL::createPublicURL(executionContext, source);
 }
 
-} // namespace WebCore
+} // namespace blink