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

public/platform/WebSocketHandshakeRequestInfo.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 18 matching lines @@
  */
 
 #ifndef WebSocketHandshakeRequestInfo_h
 #define WebSocketHandshakeRequestInfo_h
 
 #include "public/platform/WebCommon.h"
 #include "public/platform/WebNonCopyable.h"
 #include "public/platform/WebPrivatePtr.h"
 
 namespace blink {
-class WebSocketHandshakeRequest;
-} // namespace blink
-
-namespace blink {
 
 class WebString;
+class WebSocketHandshakeRequest;
 class WebURL;
 
 class WebSocketHandshakeRequestInfo : public WebNonCopyable {
 public:
     BLINK_PLATFORM_EXPORT WebSocketHandshakeRequestInfo();
     BLINK_PLATFORM_EXPORT ~WebSocketHandshakeRequestInfo();
 
     BLINK_PLATFORM_EXPORT void setURL(const WebURL&);
     BLINK_PLATFORM_EXPORT void addHeaderField(const WebString& name, const WebString& value);
     BLINK_PLATFORM_EXPORT void setHeadersText(const WebString&);
 
 #if INSIDE_BLINK
-    BLINK_PLATFORM_EXPORT const blink::WebSocketHandshakeRequest& toCoreRequest() const { return *m_private.get(); }
+    BLINK_PLATFORM_EXPORT const WebSocketHandshakeRequest& toCoreRequest() const { return *m_private.get(); }
 #endif // INSIDE_BLINK
 
 private:
-    WebPrivatePtr<blink::WebSocketHandshakeRequest> m_private;
+    WebPrivatePtr<WebSocketHandshakeRequest> m_private;
 };
 
 } // namespace blink
 
 #endif // WebSocketHandshakeRequestInfo_h