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

public/platform/WebURL.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 17 matching lines @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef WebURL_h
 #define WebURL_h
 
 #include "WebCString.h"
 #include "WebString.h"
 #include <url/third_party/mozilla/url_parse.h>
 
-#if INSIDE_BLINK
-namespace blink { class KURL; }
-#else
+#if !INSIDE_BLINK
 #include <url/gurl.h>
 #endif
 
 namespace blink {
 
+class KURL;
+
 class WebURL {
 public:
     ~WebURL()
     {
     }
 
     WebURL()
         : m_isValid(false)
     {
     }
@@ skipping 39 matching lines @@
     {
         return m_string.isEmpty();
     }
 
     bool isNull() const
     {
         return m_string.isEmpty();
     }
 
 #if INSIDE_BLINK
-    BLINK_PLATFORM_EXPORT WebURL(const blink::KURL&);
-    BLINK_PLATFORM_EXPORT WebURL& operator=(const blink::KURL&);
-    BLINK_PLATFORM_EXPORT operator blink::KURL() const;
+    BLINK_PLATFORM_EXPORT WebURL(const KURL&);
+    BLINK_PLATFORM_EXPORT WebURL& operator=(const KURL&);
+    BLINK_PLATFORM_EXPORT operator KURL() const;
 #else
     WebURL(const GURL& url)
         : m_string(WebString::fromUTF8(url.possibly_invalid_spec()))
         , m_parsed(url.parsed_for_possibly_invalid_spec())
         , m_isValid(url.is_valid())
     {
     }
 
     WebURL& operator=(const GURL& url)
     {
@@ skipping 21 matching lines @@
 }
 
 inline bool operator!=(const WebURL& a, const WebURL& b)
 {
     return !(a == b);
 }
 
 } // namespace blink
 
 #endif