Rename WebCore to blink in Modules

Source/modules/mediastream/RTCErrorCallback.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 15 matching lines @@
  * 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 RTCErrorCallback_h
 #define RTCErrorCallback_h
 
 #include "wtf/text/WTFString.h"
 
-namespace WebCore {
+namespace blink {
 
 class RTCErrorCallback {
 public:
     virtual ~RTCErrorCallback() { }
     virtual void handleEvent(const String& errorInformation) = 0;
 };
 
-} // namespace WebCore
+} // namespace blink
 
 #endif // RTCErrorCallback_h