Cleanup namespace usage in public/platform/{Web[P-W]*,linux/*}.h

public/platform/WebSocketStreamError.h

 /*
  * Copyright (C) 2009 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 20 matching lines @@
 #ifndef WebSocketStreamError_h
 #define WebSocketStreamError_h
 
 #include "WebCommon.h"
 #include "WebPrivatePtr.h"
 
 #if INSIDE_BLINK
 #include "wtf/PassRefPtr.h"
 #endif
 
-namespace blink { class SocketStreamError; }
-
 namespace blink {
 
+class SocketStreamError;
 class WebString;
 
 class BLINK_PLATFORM_EXPORT WebSocketStreamError {
 public:
     WebSocketStreamError(int code, const WebString& message) { assign(code, message); }
     WebSocketStreamError(const WebSocketStreamError& other) { assign(other); }
     ~WebSocketStreamError() { reset(); }
 
     void assign(int code, const WebString& message);
     void assign(const WebSocketStreamError&);
     void reset();
 
 #if INSIDE_BLINK
-    WebSocketStreamError(WTF::PassRefPtr<blink::SocketStreamError>);
-    WebSocketStreamError& operator=(WTF::PassRefPtr<blink::SocketStreamError>);
-    operator WTF::PassRefPtr<blink::SocketStreamError>() const;
+    WebSocketStreamError(WTF::PassRefPtr<SocketStreamError>);
+    WebSocketStreamError& operator=(WTF::PassRefPtr<SocketStreamError>);
+    operator WTF::PassRefPtr<SocketStreamError>() const;
 #endif
 
 private:
-    WebPrivatePtr<blink::SocketStreamError> m_private;
+    WebPrivatePtr<SocketStreamError> m_private;
 };
 
 } // namespace blink
 
 #endif