Cleanup namespace usage in public/web/Web[A-M]*.h.

public/web/WebDOMMediaStreamTrack.h

 /*
  * 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 25 matching lines @@
 
 #if BLINK_IMPLEMENTATION
 #include "wtf/PassRefPtr.h"
 #endif
 
 namespace v8 {
 class Value;
 template <class T> class Handle;
 }
 
-namespace blink { class MediaStreamTrack; }
+namespace blink {
 
-namespace blink {
+class MediaStreamTrack;
 
 class WebDOMMediaStreamTrack {
 public:
     WebDOMMediaStreamTrack(const WebDOMMediaStreamTrack& b) { assign(b); }
     ~WebDOMMediaStreamTrack() { reset(); }
 
     WebDOMMediaStreamTrack& operator=(const WebDOMMediaStreamTrack& b)
     {
         assign(b);
         return *this;
     }
 
     bool isNull() const { return m_private.isNull(); }
 
     BLINK_EXPORT static WebDOMMediaStreamTrack fromV8Value(v8::Handle<v8::Value>);
 
     BLINK_EXPORT void reset();
     BLINK_EXPORT void assign(const WebDOMMediaStreamTrack&);
     BLINK_EXPORT WebMediaStreamTrack component() const;
 
 private:
 #if BLINK_IMPLEMENTATION
-    WebDOMMediaStreamTrack(PassRefPtrWillBeRawPtr<blink::MediaStreamTrack>);
+    WebDOMMediaStreamTrack(PassRefPtrWillBeRawPtr<MediaStreamTrack>);
 #endif
 
-    WebPrivatePtr<blink::MediaStreamTrack> m_private;
+    WebPrivatePtr<MediaStreamTrack> m_private;
 };
 
 } // namespace blink
 
 #endif