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

public/web/WebDOMError.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 24 matching lines @@
 #include "public/platform/WebPrivatePtr.h"
 #include "public/platform/WebString.h"
 
 namespace v8 {
 class Isolate;
 class Object;
 class Value;
 template <class T> class Handle;
 }
 
-namespace blink { class DOMError; }
+namespace blink {
 
-namespace blink {
+class DOMError;
 
 class WebDOMError {
 public:
     ~WebDOMError() { reset(); }
 
     WebDOMError() { }
     WebDOMError(const WebDOMError& b) { assign(b); }
     WebDOMError& operator=(const WebDOMError& b)
     {
         assign(b);
         return *this;
     }
 
     BLINK_EXPORT static WebDOMError create(const WebString& name, const WebString& message);
 
     BLINK_EXPORT void reset();
     BLINK_EXPORT void assign(const WebDOMError&);
 
     BLINK_EXPORT WebString name() const;
     BLINK_EXPORT WebString message() const;
 
     BLINK_EXPORT v8::Handle<v8::Value> toV8Value(v8::Handle<v8::Object> creationContext, v8::Isolate*);
 
 #if BLINK_IMPLEMENTATION
-    explicit WebDOMError(const PassRefPtrWillBeRawPtr<blink::DOMError>&);
-    WebDOMError& operator=(const PassRefPtrWillBeRawPtr<blink::DOMError>&);
+    explicit WebDOMError(const PassRefPtrWillBeRawPtr<DOMError>&);
+    WebDOMError& operator=(const PassRefPtrWillBeRawPtr<DOMError>&);
 #endif
 
 protected:
-    WebPrivatePtr<blink::DOMError> m_private;
+    WebPrivatePtr<DOMError> m_private;
 };
 
 } // namespace blink
 
 #endif // WebDOMError_h