Cleanup WebKit prefixed names for classes in css directory.

Source/core/css/CSSViewportRule.h

 /*
  * Copyright (C) 2012 Intel Corporation. All rights reserved.
  * Copyright (C) 2012 Apple 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
@@ skipping 10 matching lines @@
  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
  * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
  * TORT (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 WebKitCSSViewportRule_h
-#define WebKitCSSViewportRule_h
+#ifndef CSSViewportRule_h
+#define CSSViewportRule_h
 
 #if ENABLE(CSS_DEVICE_ADAPTATION)
 
 #include "core/css/CSSRule.h"
 
 namespace WebCore {
 
 class CSSStyleDeclaration;
 class StyleRuleViewport;
 class StyleRuleCSSStyleDeclaration;
 
-class WebKitCSSViewportRule: public CSSRule {
+class CSSViewportRule: public CSSRule {
 public:
-    static PassRefPtr<WebKitCSSViewportRule> create(StyleRuleViewport* viewportRule, CSSStyleSheet* sheet)
+    static PassRefPtr<CSSViewportRule> create(StyleRuleViewport* viewportRule, CSSStyleSheet* sheet)
     {
-        return adoptRef(new WebKitCSSViewportRule(viewportRule, sheet));
+        return adoptRef(new CSSViewportRule(viewportRule, sheet));
     }
-    ~WebKitCSSViewportRule();
+    ~CSSViewportRule();
 
     virtual CSSRule::Type type() const OVERRIDE { return WEBKIT_VIEWPORT_RULE; }
     virtual String cssText() const OVERRIDE;
     virtual void reattach(StyleRuleBase*) OVERRIDE;
     virtual void reportMemoryUsage(MemoryObjectInfo*) const OVERRIDE;
 
     CSSStyleDeclaration* style() const;
 
 private:
-    WebKitCSSViewportRule(StyleRuleViewport*, CSSStyleSheet*);
+    CSSViewportRule(StyleRuleViewport*, CSSStyleSheet*);
 
     RefPtr<StyleRuleViewport> m_viewportRule;
     mutable RefPtr<StyleRuleCSSStyleDeclaration> m_propertiesCSSOMWrapper;
 };
 
 } // namespace WebCore
 
-#endif // WebKitCSSViewportRule_h
+#endif // CSSViewportRule_h
 
 #endif // ENABLE(CSS_DEVICE_ADAPTATION)