Rename WebCore namespace to blink in Platform

Source/platform/scroll/ScrollbarThemeOverlay.h

 /*
  * Copyright (C) 2011 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 11 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef ScrollbarThemeOverlay_h
 #define ScrollbarThemeOverlay_h
 
 #include "platform/graphics/Color.h"
 #include "platform/scroll/ScrollbarTheme.h"
 
-namespace WebCore {
+namespace blink {
 
 // This scrollbar theme is used to get overlay scrollbar for platforms other
 // than Mac. Mac's overlay scrollbars are in ScrollbarThemeMac*.
 class PLATFORM_EXPORT ScrollbarThemeOverlay : public ScrollbarTheme {
 public:
     enum HitTestBehavior { AllowHitTest, DisallowHitTest };
 
     ScrollbarThemeOverlay(int thumbThickness, int scrollbarMargin, HitTestBehavior);
     ScrollbarThemeOverlay(int thumbThickness, int scrollbarMargin, HitTestBehavior, Color);
     virtual ~ScrollbarThemeOverlay() { }
@@ skipping 16 matching lines @@
     virtual ScrollbarPart hitTest(ScrollbarThemeClient*, const IntPoint&) OVERRIDE;
 
 private:
     int m_thumbThickness;
     int m_scrollbarMargin;
     HitTestBehavior m_allowHitTest;
     Color m_color;
     const bool m_useSolidColor;
 };
 
-} // namespace WebCore
+} // namespace blink
 
 #endif