Cleanup namespace usage from animation to exported in platform/

Source/platform/exported/WebScrollbarThemeGeometryNative.cpp

 /*
  * Copyright (C) 2012 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 13 matching lines @@
  */
 
 #include "config.h"
 
 #include "platform/exported/WebScrollbarThemeGeometryNative.h"
 
 #include "platform/exported/WebScrollbarThemeClientImpl.h"
 #include "platform/scroll/ScrollbarTheme.h"
 #include "public/platform/WebScrollbar.h"
 
-using namespace blink;
-
 namespace blink {
 
-PassOwnPtr<blink::WebScrollbarThemeGeometryNative> WebScrollbarThemeGeometryNative::create(blink::ScrollbarTheme* theme)
+PassOwnPtr<WebScrollbarThemeGeometryNative> WebScrollbarThemeGeometryNative::create(ScrollbarTheme* theme)
 {
     return adoptPtr(new WebScrollbarThemeGeometryNative(theme));
 }
 
-WebScrollbarThemeGeometryNative::WebScrollbarThemeGeometryNative(blink::ScrollbarTheme* theme)
+WebScrollbarThemeGeometryNative::WebScrollbarThemeGeometryNative(ScrollbarTheme* theme)
     : m_theme(theme)
 {
 }
 
 WebScrollbarThemeGeometryNative* WebScrollbarThemeGeometryNative::clone() const
 {
     return new WebScrollbarThemeGeometryNative(m_theme);
 }
 
 int WebScrollbarThemeGeometryNative::thumbPosition(WebScrollbar* scrollbar)
@@ skipping 94 matching lines @@
     IntRect thumb;
     IntRect endTrack;
     m_theme->splitTrack(&client, track, startTrack, thumb, endTrack);
 
     webStartTrack = startTrack;
     webThumb = thumb;
     webEndTrack = endTrack;
 }
 
 } // namespace blink