Cleanup namespace usage from animation to exported in platform/

Source/platform/exported/WebScrollbarThemeClientImpl.h

 /*
  * 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 22 matching lines @@
 
 namespace blink {
 class ScrollView;
 
 // Adapts a WebScrollbar to the ScrollbarThemeClient interface
 class PLATFORM_EXPORT WebScrollbarThemeClientImpl : public ScrollbarThemeClient {
     WTF_MAKE_NONCOPYABLE(WebScrollbarThemeClientImpl);
 public:
     // Caller must retain ownership of this pointer and ensure that its lifetime
     // exceeds this instance.
-    WebScrollbarThemeClientImpl(blink::WebScrollbar*);
+    WebScrollbarThemeClientImpl(WebScrollbar*);
     virtual ~WebScrollbarThemeClientImpl();
 
     // Implement ScrollbarThemeClient interface
     virtual int x() const OVERRIDE;
     virtual int y() const OVERRIDE;
     virtual int width() const OVERRIDE;
     virtual int height() const OVERRIDE;
     virtual IntSize size() const OVERRIDE;
     virtual IntPoint location() const OVERRIDE;
     virtual Widget* parent() const OVERRIDE;
@@ skipping 19 matching lines @@
     virtual ScrollbarPart pressedPart() const OVERRIDE;
     virtual ScrollbarPart hoveredPart() const OVERRIDE;
     virtual void styleChanged() OVERRIDE;
     virtual bool enabled() const OVERRIDE;
     virtual void setEnabled(bool) OVERRIDE;
     virtual bool isOverlayScrollbar() const OVERRIDE;
     virtual bool isAlphaLocked() const OVERRIDE;
     virtual void setIsAlphaLocked(bool) OVERRIDE;
 
 private:
-    blink::WebScrollbar* m_scrollbar;
+    WebScrollbar* m_scrollbar;
 };
 
-}
+} // namespace blink
 
 #endif // WebScrollbarThemeClientImpl_h