Remove the webkit prefix from idl properties and interfaces.

sky/engine/core/html/HTMLMediaElement.cpp

Index: sky/engine/core/html/HTMLMediaElement.cpp
diff --git a/sky/engine/core/html/HTMLMediaElement.cpp b/sky/engine/core/html/HTMLMediaElement.cpp
index bd50e21eb487b79cf490011bf4c2bf7c5268558e..71cf4130d7030902fd6042f7399f97bf8aa988ee 100644
--- a/sky/engine/core/html/HTMLMediaElement.cpp
+++ b/sky/engine/core/html/HTMLMediaElement.cpp
@@ -2353,20 +2353,6 @@ blink::WebLayer* HTMLMediaElement::platformLayer() const
     return m_webLayer;
 }
 
-unsigned HTMLMediaElement::webkitAudioDecodedByteCount() const
-{
-    if (!webMediaPlayer())
-        return 0;
-    return webMediaPlayer()->audioDecodedByteCount();
-}
-
-unsigned HTMLMediaElement::webkitVideoDecodedByteCount() const
-{
-    if (!webMediaPlayer())
-        return 0;
-    return webMediaPlayer()->videoDecodedByteCount();
-}
-
 bool HTMLMediaElement::isURLAttribute(const Attribute& attribute) const
 {
     return attribute.name() == HTMLNames::srcAttr || HTMLElement::isURLAttribute(attribute);